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Loading small primer .45

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Dcforman
joeangi
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Post by joeangi Mon 1 Mar - 7:34

I am mostly out of large pistol primers and still have a decent amount (not by some standards) of small pistol primers. I do have some spp .45 brass and hate to put it to use, but...

Question is, do I still use my basic recipe of 3.9 gr. Of Bullseye, or do I need to increase the powder charge to “make up for” the smaller primer. 

Thanks for any advice,
Joe

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Post by Dcforman Mon 1 Mar - 7:41

I found I had to increase about .3 - .4 WST to get reliable functioning. No chrony info though. Might not have to go that much higher with a faster powder like BE.

Dave

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Post by bruce martindale Mon 1 Mar - 9:11

How about large primer 38s?

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https://www.bullseyeforum.net/t20747-feeling-center-a-10-bullsey

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Post by Wobbley Mon 1 Mar - 11:42

bruce martindale wrote:How about large primer 38s?
They haven’t made those in years...
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Post by Wobbley Mon 1 Mar - 11:43

joeangi wrote:I am mostly out of large pistol primers and still have a decent amount (not by some standards) of small pistol primers. I do have some spp .45 brass and hate to put it to use, but...

Question is, do I still use my basic recipe of 3.9 gr. Of Bullseye, or do I need to increase the powder charge to “make up for” the smaller primer. 

Thanks for any advice,
Joe
I found that the changes are minimal.  But if it helps you mentally I’d up it to 4.2 and go shoot.
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Post by joeangi Mon 1 Mar - 11:48

Thanks for all the advice. I will bump up to 4.1 and see how it shoots.

Joe

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Post by Vinkemulder Mon 1 Mar - 14:31

I am in the same boat. I have found that for Bullseye and Titegroup 0.1gr increase is the correct addition when using CCI LPP to CCI SPP.

Jason
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Post by rich.tullo Mon 8 Mar - 22:12

0.1 or use magnum primers.
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