Re: Why was the bolt hard to close on 400 rounds?
Yes the firing pin assembly and the rest of the bolt was disassembled. The brass was brand new Privi 308 brass. We checked the brass with a Wilson case length gauge. The brass set a little high in the bottom slits on the gauge. So we set the shoulder back until it was in between, almost on the bottom cut. Then the bolt closed normally. After that we bought some Federal 168 Match that ammo chambered fine, normal bolt closure. The only thing we can figure is the Privi brass was out of spec. Additionally checked the head space, closed on the go, didn't on the no go. I've used Privi brass in many of my foreign metric caliber rifles for years without a problem. We got the brass from Graf's as I usually do.
This was my brothers brand new SPS Tactical rifle, 1 week old at the time, which is why I keep saying we. My 308 is a TRG 22 and I use Lapua brass. He has now put over 100 rounds through the rifle with absolutely no sign of any incipient head seperation. He has since bought 200 Winchester cases. No problem at all
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body">Santo,
Did you remove the firing pin assembly before you adjusted that die? .010" (ten thousandths of an inch) is a lot to move the shoulder on anything. A friend goes .004 on his 375 H&H mag. But that's a really long case. IN MOST CASES, .010" is way too much to bump shoulders. I would be afraid there will be a case head seperation in the not too distant future. </div></div>