Primer question


January 31, 2008, 12:45 PM
Went to the store today to stock up on reloading components and picked up a box of CCI magnum large pistol primers instead of just large pistol primers for my .45 acp. Am I ok to use these primers anyways or should I hold off until I get the others? Thanks

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Tom C.
January 31, 2008, 01:24 PM
Magnum primers are generally used with large volume cases full of slow, hard to ignite powder, like 296. If you are using 231 or something like that, perhaps you should consider holding these primers and getting some non-magnum primers for .45 ACP.

Steve C
January 31, 2008, 01:35 PM
Magnum primers can be used with standard loads just fine, but as with any change in components you should rework up your load from the start level (10% reduction form max).

For example Winchester currently makes only one type of large pistol primer and mark the box "for standard and magnum loads". Their primer is essentially a magnum primer.

January 31, 2008, 01:41 PM
Those CCI primers are hotter than the standard primes so like said above, rework your loads from the lower starting point. In a large case like that of a .45 Auto it's a little less sensitive than with something like a .380 Auto. If you have no other choice but to use them do so but if you can get the standard primers it would probably be better just so you don't have to do all the work of changing your regular load.

THe Dove
January 31, 2008, 08:02 PM
On a scale 1-10, how do you rate the P220? Saw you signature and thought I would ask. I got some feed back on another thread, just wonderin'.

The Dove

evan price
February 1, 2008, 01:03 AM
As long as you are not loading your charges right at the specified maximums for the powder, Magnum primers won't cause any troubles (and even at maximums there is a safety factor). They are a little hotter than standard but as pointed out before, Winchester large pistol primers are for Magnum or standard loads and are thus about a Magnum primer in themselves. I have used Mag primers in my ,45's and noticed no difference, however, YMMV, the rule of thumb is change a component materially and rework the loads.

On a scale of 1-10, ten being "everybody should have one" I rate my P220 as a solid 9.5 just because if everyone had one it would be boring. Nicest shooting .45 I've owned or shot.

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