large rifle primers in place of large pistol

gerrycaruso

NES Member
Rating - 100%
18   0   0
Joined
Jun 9, 2006
Messages
3,421
Likes
1,495
Location
westford
I know it's not supposed to be done because of the difference in height but since large pistol primers are not available, I thought I'd see if large rifle would fit. CCI large rifle primers fit the primer pocket of a .45acp case without sticking out the bottom. I went to try them this morning but the club was a nut house. I'll try again later today.
 

Rob Boudrie

NES Member
Rating - 100%
5   0   0
Joined
Apr 24, 2005
Messages
37,742
Likes
15,833
Interesting. If you have some LPP can you mic the depth of that and LRP and report the difference you are seeing as well as the brand primer?
 

Uzi2

NES Member
Rating - 100%
4   0   0
Joined
Sep 5, 2017
Messages
7,200
Likes
10,265
Curious, is your .45 brass all one headstamp or mixed stuff?

image.jpeg

Federal LR primers are even shorter than CCI
 

gerrycaruso

NES Member
Rating - 100%
18   0   0
Joined
Jun 9, 2006
Messages
3,421
Likes
1,495
Location
westford
Headstamp was mixed. I loaded 15 rounds. I got to try them this afternoon and all worked fine. The gun was a S&W Shield. They chambered fine and went off on the first strike every time and I still have both eyes and all my fingers. Not a very scientific test but I'll take it to mean that when I run out of practice .45 ammo in about 4 months, I can make more with rifle primers if I haven't gotten any pistol primers by then. I have a lead on some and I'll check it out tomorrow.
 

John4166

NES Member
Rating - 100%
3   0   0
Joined
Oct 31, 2009
Messages
441
Likes
758
Location
Quincy
I have used large rifle on 45 ACP. I was a bit concerned about a slam fire since they sit a little higher in the primer pocket but that didn't happen. Shot fine, didn't notice any difference in power campared to LP primers.
 

EddieCoyle

Consigliere
Moderator
NES Member
Rating - 100%
142   0   0
Joined
Nov 11, 2005
Messages
21,027
Likes
7,454
Location
Northern, MA
If you're going to try this, use fresh brass. The failure mode of 45 ACP brass is shortening of the primer pocket. New brass has deeper pockets.

 
Top Bottom