I just took two new 308s built on Defiance actions and Benchmark barrels shooting last weekend and out of 60 rounds, same lot number, of Federal GM ammo, 2 would not chamber. I disassembled them after measuring headspace, bumped the shoulder back 2 thousandths, and reloaded them just so they'd fit. With the belted cases, it's my experience that most will grow significantly in the chamber. Just another reason to fireform all brass to the chamber. Curiously, I've still seen quite a bit of factory ammo shoot extremely well despite the excessive headspace
Fire formed brass, shoulder moves foward, headspace off shoulder once-twice fired?? Headpace off the belt for your choice of brass and its belt?? I'm kinda mixed up
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I have yet to see any gunsmith explain this much detail. Great work Scott!
Dear Sir - appreciated........thanks.
@quarterminutemagnums I'm Danny not sir. But you sir have taught me alot.
Another great video showing amazing experience! 👍
Thank you............
I just took two new 308s built on Defiance actions and Benchmark barrels shooting last weekend and out of 60 rounds, same lot number, of Federal GM ammo, 2 would not chamber. I disassembled them after measuring headspace, bumped the shoulder back 2 thousandths, and reloaded them just so they'd fit.
With the belted cases, it's my experience that most will grow significantly in the chamber. Just another reason to fireform all brass to the chamber. Curiously, I've still seen quite a bit of factory ammo shoot extremely well despite the excessive headspace
Dear Sir - thanks for the information - appreciated. I also agree with your observations.
Fire formed brass, shoulder moves foward, headspace off shoulder once-twice fired?? Headpace off the belt for your choice of brass and its belt?? I'm kinda mixed up
Dear Sir - phone me next week for additional confusion.......................thanks.
After your first shot, the brass will be fire formed to the chamber. Correct?
Tony Boyer stated - "after three shots."
What is your second choice Action after BAT?
Dear Sir - Borden. Thanks............
@@quarterminutemagnums Excellent choice. Last time I spoke with Jim it was over a year wait on left hand actions.
@@derekmcmurry Dear Sir - we just requested an altered version of their "Bigfoot", but Jim said "no" due to demand. Thanks...............