Hello everyone. I'm looking for some help I've been having with a rifle that I had a new barrel put on. The rifle is a Kimber 8400 in 270 wsm that I replaced the barrel with a faster twist. The factory barrel would shoot 72 grs of mag pro with a 140 grain interlock. The new barrel I had ordered had a .700 freebore I contacted the maker and said that that isn't what I asked for. They remade the barrel so I only had .020 freebore with 175 grain Game king. With the new barrel I can only get 68 grains of mag pro powder with the 140 gr. bullet before the bolt sticks. No flattened primer but on one side of the case has a small gouge in the brass where the claw extractor cut out is. But only on one side. Like the case expanded and didn't shrink back to allow easy extraction. It wouldn't bother me so bad except for the fact everything I've tried loading for I can't seem to get even into the middle of the load data. I've recut the freebore another .07
And polished the chamber and it's still 200 to 300 fps slower than I think it should be at. Most recent load was 165 gr. Ablr and 65 grains of retumbo
Which is only getting me 2760
Fps before the bolt sticks. Any suggestions as to what would cause this gouge in the brass.
I can't see anything with a bore scope even before polishing the chamber.
Thanks
And polished the chamber and it's still 200 to 300 fps slower than I think it should be at. Most recent load was 165 gr. Ablr and 65 grains of retumbo
Which is only getting me 2760
Fps before the bolt sticks. Any suggestions as to what would cause this gouge in the brass.
I can't see anything with a bore scope even before polishing the chamber.
Thanks
