Phillip Cox
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What are you choosing for your 22 CM, Large or Small primer pockets? What is everyone finding to have the best performance? Or what application are you using what size for? Thanks
22 CM LG vs Small Primer Pocket Preference?
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I will be using LRP due to multiple people having hang-fires using SRP during cold temps.
Phillip Cox
Active Member
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- Jan 16, 2018
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Thanks for that info. I ordered Alpha Munitions large primer and then hoped after the fact that I made the right decision. Crossing my fingers that I made the correct order for my situation. Good to hear and thanks for the response.
Alpha is good brass either way. Some want the SRP brass so they can push the pressure limit up, but there is a trade off in a smaller flame column.
You will be fine.
You will be fine.
Gstew1930
Well-Known Member
I've had better accuracy & SD's with small rifle but i live in south Texas so rarely dealing with freezing temps
Phillip Cox
Active Member
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good to know
I've heard of this a few times. Luckily I've never experienced it in my 6.5x47 with CCI450's. I'm in Manitoba and hunt whitetail frequently in -20 to -30C.
PNW EOD
Well-Known Member
I've found better performance in my 6.5 Creedmoor with CCI #450's, but I keep some LRP brass around for really cold hunts. Here in WA we don't have a rifle season that would ever make me think that I'd be hunting in sub freezing temps, but I run some coyote loads with Federal 210's. Never experienced a hang-fire with the SRP stuff, but enough people have to make me think it's not the best idea if I know it's going to be cold.
Had some ball powders give me hang fires,I use mostly SRM,never hand a hang fire with extruders powders.
lancetkenyon
Well-Known Member
I have never had a FTF or hangfire with any SRP down to 4°F. I shoot a lot of SRP when available in the smaller catridges based on .308Win parent case and down.
I have two .260AIs. Alpha .260 Rem brass for both. One is SRP and one is LRP. I have noticed zero difference in performance, accuracy, or velocity. When loading identical, they are pretty much identical.
The big benefits of SRP are these: availability of primers, longer lasting primer pockets.
I run SRP in:
.223 (of course)
22GT
6CM
25CM (x2)
25MBK
6.5CM
.260AI
LRP in:
6.5SLR
.260AI
25SST
25PRC/SI
6.5PRC/SI
6.5SS (x2)
7SS
7RM
28 Nos
300PRC
I have two .260AIs. Alpha .260 Rem brass for both. One is SRP and one is LRP. I have noticed zero difference in performance, accuracy, or velocity. When loading identical, they are pretty much identical.
The big benefits of SRP are these: availability of primers, longer lasting primer pockets.
I run SRP in:
.223 (of course)
22GT
6CM
25CM (x2)
25MBK
6.5CM
.260AI
LRP in:
6.5SLR
.260AI
25SST
25PRC/SI
6.5PRC/SI
6.5SS (x2)
7SS
7RM
28 Nos
300PRC
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In your experience do you think the cci 450 or 205m primers are hotter?
I've been running cci450's in my 22 creed and 6 creed because of cold temperatures when I'm coyote hunting in the winter. I've never tested them against each other.
lancetkenyon
Well-Known Member
I think the CCI450 and Fed GM205M are very close. I believe they are both hotter than the CCI BR4 and CCI400.
I use CCI450, CCI BR4, and Fed GM205M in various rounds.
I would say I use the CCI450 in a bit larger case capacity rounds. .260AI and 25MBK.
I use CCI450, CCI BR4, and Fed GM205M in various rounds.
I would say I use the CCI450 in a bit larger case capacity rounds. .260AI and 25MBK.
MagnumManiac
Well-Known Member
I also run SRP brass when I can get it, currently using SRP in 22-250/22-250AI, 260AI, (2) 6.5x47 and 7-08.
I only use Winchester SRP, either standard or magnum, have never found other primer brands to work as well. Same in my SRP 222, 223 or 17 Remington.
Cheers.
I only use Winchester SRP, either standard or magnum, have never found other primer brands to work as well. Same in my SRP 222, 223 or 17 Remington.
Cheers.
