Author Topic: Crimp or no Crimp on the .445 SuperMag ? (Read 682 times)

PJ · « **on:** December 20, 2002, 03:38:01 PM »

Started loading but, not sure I should crimp the load book says to put a good crimp on it to get good powder burn.hmmmmmmm help please.

KN · « **Reply #1 on:** December 20, 2002, 03:56:27 PM »

Absolutly, Always crimp the big rounds when possible. KN

OLDMAN · « **Reply #2 on:** December 21, 2002, 03:14:46 AM »

PJ,
I ask the same question when I first got that barrel so I ran a test. I think if you chrono you loads you will find that when using H110 and other slow burning powders that the biggest difference you will find is wide shot to shot variations. I got from 185 to 250 fps difference from shot to shot when I did not roll crimp.

KYODE · « **Reply #3 on:** December 21, 2002, 05:23:38 AM »

i would say a good crimp and magnum primers for slow burning powders, just as 44 mag.

PJ · « **Reply #4 on:** December 21, 2002, 08:22:50 PM »

Thank's guy's