Had the new DT SRS Covert out the other with the Bartlein 450 Bushmaster barrel.
Gun wasn’t consistently shooting. Could’ve been me (I suck) but normally I can shoot some good groups. This thing was shooting well but maybe within 4-5” at times throwing shots.
I was shooting Bear Creek Ballistics 459 bushmaster 240gr copper projectile moving at 2590fps (which is cooking for 450bm) I chrono’d mine at an average of 2515fps
Anyway I was using a Rugged Obsidian 45 silencer. After taking it home and cleaning it I noticed the front baffle was completely destroyed. Doesn’t look like a baffle strike to me but almost a pop can being crushed. Maybe that had to do with accuracy inconsistencies??
Then after further examining my brass. Every single primer is protruding out. I contacted the ammo manufacturer (Bear Creek Ballistics) and they seem to have never had these issues using a variety of different firearms.
He pointed out that the chamfer on the firing pin hole is extremely large. Thinking that maybe it’s out of spec or the chamber pressure is extruding the primer into the chamfer into the bolt face.
I have not shot the firearm with the 6.5cm barrel due to wanting to sight it in for gun season here in a few weeks. Planning on hitting the range in a few days and trying some factory Hornady 250gr ammo along with no silencer or maybe my VERS 458 can. Bullets were not keyholing. View attachment 7731114View attachment 7731115View attachment 7731118
I‘d definitely shoot it without anything on the barrel with the same ammo to see what happens. the loads don’t look over pressure because the edges of the primer are rounded. Primer is just flowing into the chamfer. No idea why the new boly is like that.