I'm using imr 4227 and cci mag large pistol primers for 44mag carbine. the powder doesn't seem to burn all the way so I was wondering is another brand mag primer hotter to give me a cleaner burn or will say Winchester magnum still be the same as cci magnum?
hotter primers?
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CCWdownrangeP2
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Try more crimp or faster powder. Primers don't really vary that much one manufacturer to another.
Grumulkin
Member
The fact you aren't getting a good powder burn means pressure is a bit low. So, you could increase the load and/or go to a different primer.
I use IMR 4227 for 357 Herret reloading and I found significantly better accuracy when using CCI 250 (large rifle magnum) primers. So, you could try a different brand of magnum pistol primers but as CCWdoqnrangeP21 said, there probably won't be much of a difference. When I tried CCI 250 primers for 44 Remington Magnum loads, I found I had to reduce the powder charge by 1 or 2 grains.
Not uncommon to have some leftover mostly burned granules with 4227 Gets better as the pressure goes up. Folks who use it overlook it because of the accuracy.
It was what I used when I loaded .44 Mag for a carbine. It worked great and was very accurate. I used Mag primers with it. (Still have some of those old mag primers)
I ran out of it and since AA #9 got me all the velocity I wanted form a pistol (a 240 @ 1300+ from a 5.5" tube) I stuck with that.
It was what I used when I loaded .44 Mag for a carbine. It worked great and was very accurate. I used Mag primers with it. (Still have some of those old mag primers)
I ran out of it and since AA #9 got me all the velocity I wanted form a pistol (a 240 @ 1300+ from a 5.5" tube) I stuck with that.
rodregier
Member
Based on what I have read, I'm skeptical there would be a significant enough difference between the two primer products you mention to make a real change.
CCI and Winchester make fairly hot primers.
Loaded with a published charge? Decent load density?
CCI and Winchester make fairly hot primers.
Loaded with a published charge? Decent load density?
24gr is my max charge in my book and hodgdons data and that's what they are loaded too. I had to pull 2 the other day because I forgot to prime them and the charge was so compressed I had to take a paper clip and poke it a few times to loosen it to fall in the pan.
When I fire and break the gun open (single shot rifle) the barrel is full of smoke and there is granules of powder all through the barrel. its accurate as all get out though. after a few shots though accuracy seems to get funny I'm thinking cause of the unburned powder.
When I fire and break the gun open (single shot rifle) the barrel is full of smoke and there is granules of powder all through the barrel. its accurate as all get out though. after a few shots though accuracy seems to get funny I'm thinking cause of the unburned powder.
USSR
Member
Yep. Accuracy trumps unburned granules.
Don
well she touched 3 holes at 50yards last night. was a little dirty but at 24gr IMR 4227, cci large pistol mag primer and a good roll crimp it seemed to clean up a little better.
its not an everyday shooter so I will just deal with it seeing how it shoots that well.
its not an everyday shooter so I will just deal with it seeing how it shoots that well.
Sunray
Member
IMR4227 doesn't need magnum primers. Magnum primers have nothing whatever to do with the cartridge name. They're about the powder used and nothing else.
You'll note that even Hodgdon's site that for who knows why has been giving magnum primers for magnum NAMED cartridges, but does not for .44 Mag and 240 grain rifle loads. They do for .357 Mag.
24.0 of IMR4227 isn't a compressed load in .44 Mag. If it was, something is terribly wrong.
You'll note that even Hodgdon's site that for who knows why has been giving magnum primers for magnum NAMED cartridges, but does not for .44 Mag and 240 grain rifle loads. They do for .357 Mag.
24.0 of IMR4227 isn't a compressed load in .44 Mag. If it was, something is terribly wrong.
USSR
Member
Once again Sunray, you chime in on a subject that you obviously have little knowledge of. In fact, it is entirely about the powder used (IMR4227), and nothing to do with the fact that it is being used in the OP's 44 Mag case. You see, I use 22 grains of IMR4227 with a magnum primer in my .45 Colt cases, and they don't have the word "Magnum" on their headstamp. For IMR4227 to achieve fairly clean combustion, it needs to operate under high pressure. Using a magnum primer helps in that category.
Don
and that's why I went with a magnum primer to clean the load up a bit so its not like shooting a ML. the guy at the reloading shops about 65yo and says hes been at this for 40 something years and asked what gun, what bullet and I said handi rifle and 240gr xtp. he says me and the other guy that work here use imr 4227 and cci large pistol magnum primers for the same combo. I questioned the mag primer and he said it helps burn better. I noticed a lot of difference with mag primers and my 223 with flake and stick powders so cant hurt 4227. this things a tack driver with that combo so I doubt ill ever change anything.
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