Bertram 338 RUM Brass with extra deep primer pockets

[D.Camilleri]

I bought a bunch of Bertram Brass for my 338 RUM and have been experiencing some hang fires and a few no fires with CCI 250 primers in front of 100 gr of RL 33 and 285 gr Hornady ELDM. I measured the primer pocket depth and they are on average 6-8 thousandths deeper than the remington brass. I have some Federal 215's to try, but is this extra depth an issue. I always seat to the bottom of the primer pocket, is there a work around? The firing pin strike appears to be normal. Any thoughts?

 

[LongBomber]

First firing with them? I have some 338 edge brass where the base - shoulder measurement was way short. I had to seat bullets into the lands the first firing to expand them enough to fire. Tough brass, but not the best dimensionally out of the box.

 

[can1010]

have seen same issue. switching to Fed 215 solved the problem I think the CCI 250 need a harder strike to fire