2 All those who don't believe that your information is correct. Telling them to shut up put up a come on down during the competition. I know what you are telling us is the truth. I am following your procedures and starting to see the outcome. And the benefits in a much greater way😊😊😊
Hi Bruce. You are doing a great job with your channel--no need for you to defend your processes; your results are undeniable. On the IDOD/AutoDOD, my experience is that fired cases are, overall, straighter (less runout) than virgin cases. My fired cases have about .002" of runout. So, for 7mm If you have a .316 chamber and you want a .311 loaded round for .005 clearance then you need to turn your necks to be .0135. The problem is that Lapua brass is between .015 and .016. That is not thick enough to negate the .002 runout. The 'solution' is to make sure the desired neck diameter requires removal of more than the .002 runout or you will end up with uneven necks. In this example a .315 chamber with .005 neck clearance would use loaded rounds with .310 necks meaning you could turn your brass down to .013 neck thickness. This would work as long as your brass has a minimum neck thickness of .015 and your runout is .002 or less...
Everything you wrote is right on the money. So I'm finding the necks won't be perfect in this chamber for proper neck clearance. I'm hoping that it will be close enough? If not, then I will have to order a new reamer more to my liking. Now you can see why it took several reamers to find success in 284. Hopefully my next reamer in this caliber will straighten out the issues I've found so far.
As you already know, all of this stuff is a system and you have to know or have experience with what works. So, if you are adding an IDOD into your process, which is a great tool, then you may need to change a lot of other stuff you had working before like reamer design, bushing size(s) or custom dies and mandrels to achieve the desired neck tension with a new loaded diameter. I can't decide if all of this is easy or complicated. It would be easy if you had all of this stuff at the start but that's not how it works, in general. We start with what we think we need and then we start adding 'better' tools. Thank you for the great content! Learning something with every video.
Erik Cortina makes cartridge specific expander mandrel dies, the PRC one gives the base an extra squeeze to remedy the clickers. So far it’s been working for me. Also Short Action Customs makes a PRC modular sizing die that they say sizes more at the base then most traditional sizing dies, this might be worth a look also. Cheers
Replace the boring bar with a mandral it should run true, and should work just like your 21 Centery neck tuner but faster, you may have to make a mandel to replace the boring bar. John
Ignore those that dont want the info. Thanks for making the effort to share.
2 All those who don't believe that your information is correct. Telling them to shut up put up a come on down during the competition. I know what you are telling us is the truth. I am following your procedures and starting to see the outcome. And the benefits in a much greater way😊😊😊
Thanks Bruce! Keep up the great help
Hi Bruce. You are doing a great job with your channel--no need for you to defend your processes; your results are undeniable. On the IDOD/AutoDOD, my experience is that fired cases are, overall, straighter (less runout) than virgin cases. My fired cases have about .002" of runout. So, for 7mm If you have a .316 chamber and you want a .311 loaded round for .005 clearance then you need to turn your necks to be .0135. The problem is that Lapua brass is between .015 and .016. That is not thick enough to negate the .002 runout. The 'solution' is to make sure the desired neck diameter requires removal of more than the .002 runout or you will end up with uneven necks. In this example a .315 chamber with .005 neck clearance would use loaded rounds with .310 necks meaning you could turn your brass down to .013 neck thickness. This would work as long as your brass has a minimum neck thickness of .015 and your runout is .002 or less...
Everything you wrote is right on the money. So I'm finding the necks won't be perfect in this chamber for proper neck clearance. I'm hoping that it will be close enough? If not, then I will have to order a new reamer more to my liking. Now you can see why it took several reamers to find success in 284. Hopefully my next reamer in this caliber will straighten out the issues I've found so far.
As you already know, all of this stuff is a system and you have to know or have experience with what works. So, if you are adding an IDOD into your process, which is a great tool, then you may need to change a lot of other stuff you had working before like reamer design, bushing size(s) or custom dies and mandrels to achieve the desired neck tension with a new loaded diameter. I can't decide if all of this is easy or complicated. It would be easy if you had all of this stuff at the start but that's not how it works, in general. We start with what we think we need and then we start adding 'better' tools. Thank you for the great content! Learning something with every video.
1
Erik Cortina makes cartridge specific expander mandrel dies, the PRC one gives the base an extra squeeze to remedy the clickers. So far it’s been working for me. Also Short Action Customs makes a PRC modular sizing die that they say sizes more at the base then most traditional sizing dies, this might be worth a look also. Cheers
Replace the boring bar with a mandral it should run true, and should work just like your 21 Centery neck tuner but faster, you may have to make a mandel to replace the boring bar. John
Subtitle please