louielouie
Beginner
- Jul 13, 2008
- 8
- 0
I have a post-64 Win. M70 in 300 Win Mag that I'm not the original owner of. The throat was long enough to seat 200gr SBT to 'mag' length (3.57" OAL) so I removed the 1/4" spacer in the magazine and shortened the bolt stop and the rounds would cycle thru the magazine just fine.
What I've noticed is that one of the bolt lugs (engagement side) is shinier than the other so I spent some effort cleaning the lugs in the receiver. With the firing pin removed and the bolt handle down on an FL-szed R-P case (thickest belt-to-base) I can still push the bolt forward a "little bit" (don't have a gauge to measure with). It moves slightly more with no case. Accuracy is about 1moa with the right loads - especially with heavier BT's seated out to the rifling.
Is this typical or should I have a 'smith take a look at it? Maybe purchase some headspace gauges?
What I've noticed is that one of the bolt lugs (engagement side) is shinier than the other so I spent some effort cleaning the lugs in the receiver. With the firing pin removed and the bolt handle down on an FL-szed R-P case (thickest belt-to-base) I can still push the bolt forward a "little bit" (don't have a gauge to measure with). It moves slightly more with no case. Accuracy is about 1moa with the right loads - especially with heavier BT's seated out to the rifling.
Is this typical or should I have a 'smith take a look at it? Maybe purchase some headspace gauges?