S&B .45 primers undersized?

[handofzeus]

First off, yes, I know about the whole 'some .45s use small pistol primers and some use large' thing. BUT, I've just spent a heck of a hassle trying to jam CCI large pistol primers into S&B .45 brass which looks like the rest of my mixed bag .45 brass........but apparently IT ISN'T! As it turns out, after sticking the calipers to punched S&B and FEDERAL primers the FEDERALs mic at .211" while the S&B are .210" HA! With a little force I can almost get them in there. Hopefully the .5mm of primer sticking out won't screw anything up.

 

[LUTNIT]

I have noticed that S&B brass in general has fairly tight primer pockets. It seems to go away after 2-3 firings and then they are fine. I believe they also aren't as chamfered as US made brass so it can be harder to get the primer to initially enter the pockets.

 

[Bobby and The Devil]

http://www.canadiangunnutz.com/forum/showthread.php?849705-S-amp-B-brass-priming-problems