http://i209.photobucket.com/albums/b...psd47bc8c5.jpg
Hello,
I have noticed an annular pitted ring developing on the bolt face, about the same diameter as the primer pocket. The photo may not show the pitting clearly but it can be clearly felt with any needle like instrument.
The rifle is a one year old model 10 in .308 and the bolt face has seen 800-900 rounds. At the 400 round mark I replaced the stock barrel with a Brux. The headspace is correct with the case expanding .002 from go gauge headspace when fired. There is no evidence of soot, gas leakage or excessive pressure on any of the fired cases. However, there must be some gas leakage to cause the pitting. I've seen annular discolored rings like this before but I have not seen this degree of pitting with only 900 rounds being fired. I'm thinking of replacing the bolt head with one form PTG. Would you agree with this or is this over reacting? The rifle is used in F/T rifle matches so the round count will be high.
http://shop.pacifictoolandgauge.com/...oducts_id=1291
My questions are:
Would you replace the bolt head at this time?
Is this the correct bolt head?
Will I have to re-headspace the bolt? I'm thinking yes.
I don't want to send this back to Savage as I've undoubtedly voided the warrenty.
I'm using 168gr Sierra OTM with 43.0 grs RL 15 and CCI LR primers.
The rifle will regularly shoot 10 round moa groups.
Thanks in advance,
Frank