Buffalo Bore 220 grain Hard Casts

[radiotom]

From left to right...
Spent Underwood 180 TMJ
Loaded BB 220 HC cartridge
Spent BB 220 HC
Spent BB 220 HC (blown primer)

http://postimg.org/image/958qq2ffp/

[The_Shadow]

I don't suppose you have a new large pistol primer to see if it drops inside?  That may indicate if the pocket is stretch out.
Primers can and do pop out for various reasons including high pressure events.

[radiotom]

Nope. 

[radiotom]

You guys think the rest of these are safe to shoot?
Should I contact BB?

I can't chronograph them for a month or so since I'm in the process of moving.

[The_Shadow]

They maybe but did you find any leading issues the could have increased pressure?  You could still contact BB and let them know they may send you replacement ammo...
If you get to keep them you could send them to me for pull down documentation and comparison to previous pull downs.

[Dieselman]

Just shot about 35 of these...two had blown primers.  All primers were flattened...

Don't have this problem with Underwood...

I noticed all the BB 220 Hard cast I have shot have the flattest primers of any 10mm I have ever shot. I haven't blown one yet, but boy do they flatten out. Way more than Underwood.

[4949shooter]

I had a friend from college nicknamed Dieselman. He was a big guy, and if you pissed him off he would run over you like a diesel truck.