7mm PRC Reloading: What You'll Need
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- เผยแพร่เมื่อ 30 ก.ย. 2024
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Want to know what it takes to load 7mm PRC? I'll walk through that in this story!
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Flexing with that 8 lb Retumbo that’s wort more than gold! 😂
Haha.
Lol that’s exactly what my wife said!
I would most be interested in the 195 Extreme Outer Limits (EOL) bullets as I had sitting in my shop a 7mm Practical (out of New Zealand based on a 300WM case necked down to 7mm). The 195 is heavy for caliber and the long and ultra long range target shooting that I want to do will use that pill to its extreme... Given what you have already shown of the cartridge, I may scrap the 7mm Practical and go straight to the 7mm PRC!
Thanks for all the in-site. New Remington and starting then break in. Using both ammunition you showed. Wanting to start with IMR 4831, but many things I read point toward IMR 7828SSC.
Thanks again
Kyle.
I'm intrigued by this cartridge. But I still like the 300 PRC
I would be curious to see how you would describe the recoil impulse, specifically on the bergara build. What, common place, cartridge would you compare it too ex. 30-06 7rem mag that sort of thing
I'm all ears as well
Oh snap! Let's have your parts list on both of your 7mm PRC builds. I wanna be a copy-cat. How about that X10 press from frankford? We would love an update if you have one.
Slightly longer then 30-06??? -is what you meant to say? This 7mm prc is going to be bigger then the 6.5 craze. Well, I think so anyway.
I’m actually excited about this cartridge and the results of your load development. Damn shame the component situation is still a bi#ch
Most practical would be something in 22 inch integrally suppressed barrel (suppressed but no can sticking out), with a folding stock... it would make a rifle that fits into bagpack. Probably 7-5lbs when fully equipped and loaded. Shooting either 180 eldm, 190 berger hybrid or 195 berger hunting pill. Out of 22, 195 should definitely be able to push in mid to high 2800s. Lapua brass and temp stable powder.
My first loads with 7mm PRC used 162 gr and 175 gr ELD-X bullets shot from a Browning X-Bolt Max Long Range OD Green. At 100 yards, I saw a 3-shot group of .223" with the 175s at a grain under max load for H4831SC. I also printed a 4-shot group with the 162 gr ELD-Xs of .459" with H4831SC right at the 3000 fps mark in the Hornady data, and I did that to sort of duplicate a 7mm Rem Mag load. I kept my shot counts low to save components and barrel life, plus my rifle uses a 3-round magazine. I did combat load my X-Bolt for the 4-shot 162 gr test group of .459" with three in the mag and one in the chamber while keeping my cheek weld consistent. I'm impressed with the initial accuracy, the smoothness of function, very few pressure signs (I also used CCI 250 primers, observed mild flattening), and the relative comfort of a Recoil Hawg muzzle brake. I'm going to see how well I can fit loads in the magazine that are out close to the lands which does have some extra internal space.
I’d be interested in your 4831SC charge numbers as it seems the Hodgdon manual is a bit conservative on max in relation to pressure. I dropped to a Berger 168 VLD to get a bit flatter trajectory by picking up velocity with a 22” Bartlein CFW 5R configuration. Seeing several testing 4831SC at 64-66, with no pressure signs. My intent is to get to 2900-2950 with those 168’s.
@@daviddemand6856 static.hornady.media/site/hornady/files/load-data/7mm-prc.pdf
I’m debating on a 20” lightweight hunting build with a folding stock. Probably the biggest cartridge I would dare go light with but super versatile!
Nice review Gavin. BTW, at 01:46 you mentioned the 30-06 is slightly shorter, but that is also 3.340" so with a bolt face change it will fit those actions too.
I would love to hear a side by side comparison of this to the 7 LRM or the 7 SAUM when not constrained to SAAMI throats.
I'm so ridiculously excited about this cartridge. I'm barrel shopping right now.
So does anyone know where to get this stuff? Seems like everything went to the “influencers “ instead of the actual customers. I
great video,,but,,,,,,,,,,,,yesterday i bought a 1 pound bottle of imr 4831 rifle powder 53 dollars before tax,, bullets are like buying gold,, cases are really hard to find at any price,,primers dont seem to exist,,7mm prc ammo is at least 80 to 100 dollars a box,,, like it,,but my 308s are going to be what i shoot the most,,its affordable,,
Can I use a 7 rem mag die set somehow? I can't find 7 prc dies yet.
They'll be available eventually. Wait for the proper dies.
It really does look like the best of the 3 PRC but I already bought a 6.5PRC and have very little need for it here in the midwest. I'm looking at building a .375 Raptor or 8.6BLK ,Ar10 and Rem700 for large game right now. Both use .308/6.5Creed brass and .338 or .375 bullets to shoot sub or supersonic. Uses existing mags and boltcarriers/bolt faces just a barrel swap. 7MM PRC will be looking really good out west if it takes off, and brass is everywhere in a year or 3. Right now its about finding and using existing supplies for me.
I know this is old but I thought I’d throw this out. I bought the least expensive 7 PRC I could find. A Mosberg Patriot. It shot so well I went and bought a second one for my son. 65 grain H4831SC. Tuned that load to .25 w 175 Berger. 2nd Rifle like RL 22 64.5 grains. Also .25 moa. Best $425 I’ve ever spent. Twice. It’s cold out. I’m getting 2915fps out of both loads. 24 inch barrels w EC Tuner brakes. Thanks Eric Cortina! I usually do a seating depth test then tune that in w the tuner.
I would like to see how to the Nosler 175 ABLR would fit in relation to the throat. The Gunwerks guys said one of the Berger bullets they use won’t work because it’s too short.
Retumbo / H1000... Large rifle magnum primers.. how hard could it be?? 🤣🤣
I noticed you’re a buy the book kind of guy, but I only use a magnum primers in the winter time. If I shoot in the summertime, you should try a regular large rifle primer. I use them in my big 300 ultra mag with 245 grain bullets and they’re way more consistent than the magnum primers.
72.75gr h1000 and all good new h brasss. 168 gr Bergers smoking hot (>3100fps) basically a lazer. Fully prepped brass. 22 inch barrel… max pbr 400+ yards with 344 yard zero. 3 reloads until primers falling out of Hornady brass. Going to pink mist an elk let alone a prairie dog with the velo and twist rate here…..
Regarding the 14 Press Shootout, why no Redding Ultra Mag? Would you consider doing it again with all the new presses that have entered the market and adding the Ultra Mag as well?
June 2023 found out about this cartridge - Mossberg Patriot was reviewed well so I bought that and a Burris Veracity PH. The rifle couldn't group well so in February I sent it to Mossberg. New barrel (no charge) - now I get .6" groups and ring the 8" gong at 500 yards every time. Couldn't be happier!
I also bought a Mossberg just to find out if the 7mm prc was as good as it sounded, and it is! Put a radial muzzle brake on it and it shoots really light, loud but I take my hearing protection with me anyway.
After watching your 7mm prc rifle builds, which were amazing by the way. I made up my mind on my magnum rifle. I bought the b14 hmr in 7prc. Plans of putting it in a competition type chassis. Looking forward to your opinions. Enjoy watching your content. God bless
Who has listed load data for this? And what is the realistic (or listed) Retumbo range for the 180 eldm.
I would love to see how it does with the lighter bullets 140 grain range. I think the super flat shooting 140 out of 7 mm would be fine for me for what I would be using it for. I don't really need to have heavier bullets for longer rain or game larger than deer. What is your opinion of the Bergara in 7 mm PRC I may be looking at getting that rifle. Thank you 👍
Awesome
Are you going to get one? 🙂
@@Ultimatereloader I am broke for the foreseeable future 😆😆😆
I'm a Leftie - instead of building a whole new rifle, would I be able to rebarrel a left-hand Remington 700 in 7mm Rem Mag and be ready to go?
Yes
I would buy one. If i could get powder and primers. I love my 28 nosler, and 7mm STW, and 6.5 PRC. But all of my guns are for hunting, sometimes i see what my guns can do for fun.
Blaser Custom, struggeling like h*** to find brass, Hornady bullets will also try Nosler ALR, 150 - 175 gr probably. WIll try suppressor, hopefully from A 419. Powder - Norma and Vihtavuori. Also bought a 6.5 PRC and 28 Nosler, both custom (starting to regret a bit related to the 28) - but am a 7mm adict, also have a 7 mm RM.
I'm heavily invested in the 300 win mag as magnums go. and with my platform I see no reason to change. maybe later with a few years under it. I will run this. I had a 7mm mag and I found the 300 win mag to be a better fit.
Yeah, be good to wait in your situation. The 300 wm is great and can be made to shoot heavier pay loads then the .284's.
Thanks for this video. Just bought my new 7mm PRC and need to buy my components to load for it. Do you like the Retumbo best for this or have you found another powder that works better for accuracy? My 6.5 PRC love retumbo so it would be great if I could just use it and go ahead and buy 8lbs.
I've seen ballistic comparisons. If I didn't already have a 7 rem mag. I might consider one. 27 lbs. recoil vs. 20-23, for not that much gain. Seems like a waste of money. IMO
For all practical hunting purposes and ranges, you're right. The longer ranges is more target oriented. Is the PRC more efficient, yes. But within 500 yards dead is dead, the animal won't care.
Has anyone load the 197gr Sierra's in the PRC yet? If so how did they perform in the 1:8 twist
Good deal, I have a full container of H1000 & mag primers so the most expensive part is done 😂😂
It's crazy that that's not too far from the truth.
You’ll need 61 grs of H1000, a 165 gr .277 cal projectile and a piece of 6.8 western brass
This will be the 7MM 🐐 GOAT 🐐
I’m hoping this bad boy takes off like mad. It’s hard to find .30 Cal projectiles because of the 300 prc craze so this will take the edge off and make the 230 grainers more plentiful. On a side note, I’m more inclined to look at the 7 prc then the other two. It’s just an interesting cartridge with some stellar ballistics.
Keep up the great vids. Love the technical stuff you present.
Interesting your using Retumbo, it doesn’t suggest that powder in the Hornady’s reloading online manual. How many grains are you loading?
What is the powder weight of the factory loads and what powder have they used?
Since it’s the same case but shorter a 300 prc necked down to 7mm wildcat would be awesome. My big gripe with the 300 prc is that those 230-250 bullets are just a bit slow in them but they would make screamers out of the heaviest 7’s like that a tip
What about barrel life? Is it comparable to 300 win mag or is it less?
Great video as always Gavin. other than Hornady providing brass to yourself and other select high profile TH-camrs, this brass is unubtanium. Just like the other Hornady boutique rounds introduced lately, it is just another boutique round "designed around a long for caliber bullet" and "long range blah blah blah" that really doesn't do anything half a dozen other widely available rounds won't do. It's cute and gives my favorite creators more content opportunity, but until Hornady puts some serious support behind it, and gets other ammo manufacturers to support it, it might as well not exist.
Here we are, a year or so later. I'm seeing a fair amount of factory 7PRC 175 ELD-X Precision Hunter and 180 ELD-M ammunition on the store shelves, plus Hornady Brass, Peterson Brass and ADG brass. In fact, I just received 6 boxes of 175 ELD-X from Midway. I already have Magnum primers and powder, so things are looking better now than a year ago thankfully. Most of the factory rifles on the shelves in 7PRC are sold out though. Hopefully, more hit the shelves this late spring as they are apparently in hot demand.
Thx for GREAT videos in general!!!
Gavin, how do you feel about the chamber freebore and Berger 195 eols? Do you think that work well in this caliber?
The cartridge will exceed only if components for reloading and ammo is readily available and rifle as well, I'm holding off on this one for awhile, even though, I'm really super excited 😄 😊
TBH I stopped considering this cartridge when he got to large rifle Magnum primers. Regular large rifle primers have just become available - typically at stupid prices. I don’t have any other rifles that need large rifle Magnum primers.
That said, this is the most interesting of the PRC cartridges to me. Not too small, not too big… Goldilocks would like it.
you know you can use magnum primers in other loads that take slow burning powders? 30-06 270 even 243 and similar.@@chipsterb4946
Just got a Bergara Premiere Pro HMR in 7 PRC, bought 3 boxes of Hornady 180 ELDM Match ammo to break it in with & so I would have some cases to reload. About 26 rounds of factory through it, seeing pressure signs on the cases & the groups are around 1 MOA at 100 yards. Not impressed to say the least. I have cleaned, annealed & loaded 7 rounds with 180 gr ELDM's with 63 gr of H4831SC, CCI 250 primers & COAL of 3.3500. I hope this shows some improvement.
I’ve been searching high and low for Retumbo for 3 years, haven’t found one grain! Has anyone else been able to locate any? The unicorn of powders lol.
I want to see 7 PRC vs 280 AI
I'm wondering why the Dillon XL650 won't load the 7PRC when I have loaded. 270 Winchester and 300RUM on mine with a few modifications?
6.5prc, 280Aai, 7mmprc? I'm leaning toward the .284's. I have to ask for a new rifle where I actually prefer weight and barrel length and I hand load so ammunition availability is not a concern as long as I can buy brass. Is 7 mm PRC going to be that much better then 280AI both with a 1 in 8 twist barrel. I'm looking at the Browning x-bolt long-range or Western Hunter long-range both right about $1100. Both 24 or 26" barrel. I'm hoping stock they've planned on this handling a 195 grain Berger but I'm going to be focusing around the 175 to 180gr bullet weight I'm just wondering if the hype around the seven PRC is going to be superior to the 280 Ackley giving that they're both going to be running the same twist. It for a target North American medium to large game rifle. I thought about the 300 my concern is recoil. I was looking at the 6.5 PRC but inside 500-600m I think he's larger diameter heavy your bullets will just be. Honestly I don't know would love the advice
I know that you likely don’t want to say a specific load. But I’m curious as to your Retumbo load. My 7RM recipe is 68.6g of Retumbo for a 180g Berger
I just placed an order with my gunsmith to build a 28 nosler but considering switching to the 7 prc. When do you think the components will be available for reloading?
Nice vid (as is all of your content). I'm curious, if loading for 7MM PRC specifically and you had a 24 and a 20 inch barrel (or were considering cutting the 24" down to 20") would you tend to want a faster burning powder for the shorter barrel? for instance, H1000 or Retumbo for the 24 inch and something like H4531 or 4831SC for the shorter barrel? or even 4350?
Love the 7PRC great cartridge design. Good bye to that unnecessary belt. Seekins Havak in 7PRC is half MOA rifle.
Just get a 300 Norma. Better B.C. Better down range ballistics. Doesn't matter anyways. Can't find that powder or any Large rifle magnum primers.
As a duel purpose rifle standpoint. Wouldn’t the 8.5 twist make it more versatile with whitetail bullet weights, 140-160 where the 7 mag has entrenched itself for so many years? Just for pure long range, I’d agree that the 8 twist and high bc’s would rule, but I honestly see that losing favor to the 6.5 prc if deer size game is the primary interest.
Be good to see some of the super premium bullet manufacturers come out with something heavier than 160-175grs.
A Swift Scirocco in 175-180 range would be perfect for PG in Namibia.
Would be nice to see where the bullets sit with the chamber. I would use it with my Tikka in the long action configuration and the factory mag setup. I got a CF 8T barrel on the shelf ready to go. Was thinking about he Sherman Wildcats 7mm Mega as well.
Has anyone seen any load data or created any load date to do a smaller than 150gr bullet ? I'm looking to make this my all-around hunting rifle, and I would like to do some loads with, let's say, a 130gr from barnes, maybe ? Or any other suggestions someone might have ? Still exploring the cartridge
Any chance more .284 bullets show up with longer higher weights? Not a lot 180grains out there
If it catches on good and components get readily available I’m probably going to build this as my first fully custom rifle
Not likely you’ll be finding any brass soon. 6.6 prc and 300 prc brass have been almost unobtainable and they been out how many years?
Good luck finding those primers for sale anywhere. Plus I haven't seen retumbo for sale anywhere for almost 3 years
@@dxpvxo711 an abundance of Retumbo was hitting local and online stores earlier this year but pretty sure we won’t be seeing any for a few years. I think the last time they popped up was 5 years ago.
Seems these PRC calibers are made for gun bloggers and magazine writers. None of us avergae joes are gonna be able to get components to legitimately get into one of these rounds. Just more hornady hype. Still waitin to see 6.5 prc and 300 prc ammo and brass in good stock
I'd love to work up a 180gr ELDM load around 2750 fps to maximize barrel life.
Hmmmm I Haven't seen you this excited since the .224 Valkyrie..... kinda makes me wonder
So... this, or a 28 Nosler?
Check out the spin here th-cam.com/video/neWwwSd2WYw/w-d-xo.html
28 Nosler. More energy/velocity
28 nosler is also over bore, and has a shorter barrel life
@@ja0298 yeah but it's a hunting cartridge not a paper puncher. 1000 rounds will definitely last some years it the average year has a couple dozen rounds down the tube
@@cademarti1365 100% agree with you, for most it won’t be a issue. But for those that do shoot more than average deer season though it is something to keep in mind.
I look at the 7 PRC as an updated 7mm rem mag. No belt, better case design, better chamber design (essentially a match chamber) and designed for efficiency. I think that for the majority of the hunters, who may not take advantage of the 28 nosler’s extra speed and energy transfer, the 7 prc is a better fit.
That retumbo is worth 10000 dollars on gunripper
Seems everyone is covering the PRC line up. While the longer profile of the projectile has good BC. Doesn't that increase surface area drag inside the barrel and down range? And doesn't a longer bullet have the tendency to be more prone to side winds? With approximately 300 fps separation between the 6.5,7mm, and 300. A shorter projectile would benefit all of them.
You would think so- it sounds counterintuitive- but alas, the longer bullet with higher ballistic coefficient is affected by the wind less. Im not smart enough to explain why.
There is a range at which fast time of flight and light bullets vs long time of flight and high bc favors lighter bullets for the same cartridge.
Now that said, a longer bullet with the same weight (lead vs copper) will have a lower b.c. because the sectioal density is less, and it will be blown by a sidewind more than the shorter bullet becaue if the larger surface area.
@@cheatinggravity173 I could see that being the case at over 1800 fps. Above that the nose of the projectile creates a sonic wave that deters friction until it slows down. The rear bevel reduces drag on the projectile at all speeds. I also understand that a lighter bullet will drop less because of a few reasons. But air direction and deflection would effect the side to side trajectory. Not as much above a certain fps. But gradually over its entire flight path.
A longer projectile would also hold in more of the chamber pressure in the barrel, but you also have more friction on the acceleration down the barrel. It's a horse a PC no matter how you look at it I guess. My point is that we can already achieve these same results with the already popular .30 calibers. Plenty more of them available! .308,3006,300, and 338. Why create more tooling and manufacturing when you can already do it with what you already have.?!!!
How would that prc shoot with 120s or 140s would it still shoot under a minute with the fast spin rate
The best service you can be to reloader's today is to tell us where we can buy primers.
Everyone is out!
Retumbo will be even harder to get for a long time now because of the 7 PRC
Savage High Country 24” barrel 7mm PRC
The Hornady book does not even show Retumbo as an option. Im glad you tried that.
Have you had any issues with the shot brass resizing? Anyone? Great vid
Can someone tell me what the correct Lyman shell holder I need for 7mm prc?
I have over pressure issues with my factory Hornady 7mm PRC 175 ELDX Precision Hunter ammo in my new Christensen Ridgeline FFT 22”. I noticed the ammo is .03 longer than Hornadys reloading manual. When I chamber a round and pull it out I have rifling marks on the bullet, unsure if it’s a ammo or a chambering issue.
I noticed the same thing when I used a factory loaded 175 ELD X round to set seating depth on a new die. It came out significantly longer than the Hornaday published OAL for the exact same 175 ELD X bullet.
I just purchased a CA Long Range Mesa in 7mm PRC. Starting off with the factory 175 GR Hornady Precision Hunter to get brass to reload. I am seeing pressure signs with the factory ammo. Hoping to find a reload that shoots good in my gun.
That's strange- we didn't see any pressure signs in the rifles we built...
Where in the hell did you find large rifle magnum primers?
I don't need the 7mm PRC but I do want a 6 mm PRC
So Hornady has all three factory loadings (160, 175, 180) listed at 3000. I wonder why that is? I’m most interested in that 160 CX for hunting. I wonder how fast you could push that thing with the 3.340” COAL?
Copper is incredible. Super penetrators and serious hydroshock.
It's accounting for chamber pressure for each bullet. The 180 ELD-M is just a few feet slower than the 175 ELD-X. But, when it comes to the CX the bullet causes a higher pressure, so it's loaded with less powder for the same speed to maintain the same pressures.
Tremendous!!!
7mmPRC💪👍
Who makes a rifle for this 7mm Prc, I can’t find it.
savage
@@BrettMcNary thank you
The big question: what new edge does it offer over cartridges with similar powder capacity?
From the podcasts I’ve listen to on the PRC line, they essentially gave it a match chamber from the start. That and not having a belt.
Wonder how this 7mm PRC compares with the 7mm Remington Ultra Magnum which I have in a new Sako model 75.
I had one in 7 still have one in 300 RUM . Personally I think you have the better hunting round. 7PRC components are going to be hard to come by. Just my 2 cents
@@paulmeek7964 Hey Paul, when you had your 7mm RUM. Was there any specific round/load that you found that gave you consistent accuracy. I have only one box of 20 round of the Remington 140gr. now. So going to have to reload them in the future.
@@frankserra6709 I used H1000 with a 140 Accubond 95.1 and WLRM primer also the 215 worked decent. Work up to this because it a hair warm but no pressure signs or sticking bolt but shot less than 1/2. Good luck
@@paulmeek7964 thank you so much, I have noted it down.
Cartridge design for hunting should start with understanding bullet design. Hunting bullets are designed to expand from 1800fps-3000fps (some claim slower or faster few reliably deliver). The longer the bullet the more potential for penetration it has (SD). The higher the BC the flatter it will fly thus extending your range. So you should look at a bullet like the Berger 195 grain EOL Hunter bullet as long for caliber with a high SD and BC, get a twist to stabilize it and load for a muzzle velocity around 3000fps (faster and you risk it blowing up on close up shots, slower and you lose effective range). That does the most that can be done with what we have available to us. The 7 PRC fills that niche nicely, with some room to grow.
The 6.5 PRC does it pretty nicely too in a "short" action. It however is too long for many short actions to see the best performance since it needs 3".