DocRock
member
So, I bought a ton of once fired Lake City 7.62 Nato, almost certainly machine gun fired brass. I use and RCBS narrow base die to full length resize and swage the crimps with a CH4D die. Trim and go.
I recently rescued and restored a 1967 vintage Savage M99 E carbine. So I loaded some 150 grs Sierra GK into this brass and went to the range to sight in. Little stiff chambering, maybe this chamber needs the shoulder bumped a bit more. Fired. Will not extract. Eventually, with enough force on the lever, the extractor popped off the rim. Knocked the case out with a brush and rod. Tried another round. Same thing. Fired case? Very tight fit going back in.
I had a box of 150 grs Federal Fusion .308 Win. Three shots, three easy extractions.
So. Is it that the LC brass is too expanded even after running through the narrow base FL die? I've ordered a Field Gauge to check headspace but it seems like the brass to me.
Thoughts?
I recently rescued and restored a 1967 vintage Savage M99 E carbine. So I loaded some 150 grs Sierra GK into this brass and went to the range to sight in. Little stiff chambering, maybe this chamber needs the shoulder bumped a bit more. Fired. Will not extract. Eventually, with enough force on the lever, the extractor popped off the rim. Knocked the case out with a brush and rod. Tried another round. Same thing. Fired case? Very tight fit going back in.
I had a box of 150 grs Federal Fusion .308 Win. Three shots, three easy extractions.
So. Is it that the LC brass is too expanded even after running through the narrow base FL die? I've ordered a Field Gauge to check headspace but it seems like the brass to me.
Thoughts?