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Discussion in 'Ammunition & Reloading' started by Ghost1958, Oct 5, 2020.
Can large magnum pistol primers be used to load 45 acp?
If you adjust just your powder accordingly, yes. If you are at or close to max level powder, then using magnum primers could be problematic.
Winchester does not distinguish between regular and magnum large primers.
Thanks around here primers are almost non existent.
I found some large magnum pistol primers but didnt know if they would work.
I would be uneasy using them with a very fast powder. Not uncomfortable with a mid-range powder- rolling it back to a starting load, working up looking for pressure signs.
You should have no problem if you back off 10% and work your load up again. From what I have tried, .45 ACP seems to not care if it is a small, large or large magnum primer, but, like c3shooter suggested, I would be careful with fast powders. I like medium powders for a fuller case, and that is what I have used. Just work it up like a new load.
My handgun reloads are on the low end of the recommended ranges, just enough to make the gun function.
I have no desire to see how much of ______ powder it takes to blow up a gun.
For me, magnum primer vs regular primer does not create a major risk.
You'll be fine with Unique.
Unique should be fine. As said, dial it back to starting charge, work up-
Work up Loads: Of late I have been using some CCI 350's-the magnum handgun primer-in my regular 45 ACP loads. I'm out of the Winchester's. There is a risk of gas cutting on the face of the slides. This is my experience. No KB's or major dangers. YMMV
Magnum primers: My suggestion is to work up your loads before making big lots of cartridges. I'm considering using some on-hand Federal large handgun primers as a better choice. This would be instead of the magnum handgun primers. I'm having to ration my primer use. I hope this nutball famine does not last long.
Yep, Unique should be good.
I have more problems with small pistol magnums in 38 Special than the large magnums in 45 ACP. This has to do with the handguns not the reloaded rounds. In either case, large or small, working up loads is wise. For me, I have used AA#5 in 38 Special using small pistol magnums without pressure problems. I do not recommend any thing except working up your load.
I've used SPM primers in .38 +P loads with HS-6 and 158 SWC bullets.
I dropped back 10 percent on the powder charge and had no problems.
(probably wasn't +P any longer.)
My advise is get a good Loading Manual if you do not have one and follow the Loading Manual! The suggested primer is in there for a purpose.
I used my regular load of Accurate #5 with 255 gr. Kieth style bullet yesterday. So far only 85 rounds out of two S&W revolvers. No problems with good accuracy.
Have not shot my 1911 with magnum primers yet this go around. I have shot loads of Winchester 231 and the 200gr RCBS 201 KT in my HKUSC. Worked great.
Working up loads with medium burning power is an excellent suggestion. Nobody ever got into trouble reloading being conservative
Added: The number of rounds per match has been reduced. The reason was members were wanting to ration their components. Lead has become scarce and pricey. The price gouging on primers was a topic yesterday. I'll be glad when this nutball crap is over.
Added: The S&W revolvers 44's. One magnum and one 44 Special caliber [a 624 and a Model 29] all shooting 44 Special reloads. In the last week I have fired several hundred 38 Special rounds using CCI small pistol primers. Accuracy was good, There were no problems. All these rounds were loaded with Accurate #5 and lead bullets.
ANY time you change anything... whether it is Primers, projectiles, powder, or even brass, you should re-work up the load.
Likewise when you buy NEW powder. (even if it is the same but a different lot number) It MIGHT be different.
Always reduce the loads 10% and work up.
That is why I buy my bullets, primers, powders, etc in large quantities so I don't have to do this all the time. I try to get the same lot number.
I had a deal years ago on some 75 grain hornady bullets for the 223.
Two different batches (lot numbers). One worked, the other was a shot gun pattern. Everything else was the same.
I FIXED that problem by rebarreling from a 1 in 9 to a 1 in 8 and later another in 1 in 7 twist barrel !!
OH, and unrelated to your pistol. the number 4 sierra manual says that the CCI 34 and 41 (small and large rifle) primers are to be CONSIDERED as MAGNUM primers. So..................
My primer hunt for now is handled.
All the bullets I could find were 187 grain jhp.
I'm guessing that might get the velocity up to 950fps or so due to the lighter bullet. Maybe 1000fps.
If your looking for velocity I’ve loaded 45acp with power pistol and longshot in the past just for s&g’s. They claimed those 950-1000fps with a 230gr. Recoil was noticeably more than the win231 I normally load with though.
Thanks . I'm not necessarily looking for more fps. The 187 gr bullets were all there was to be had.
I'm just guessing there will be a speed increase, though I'm not particularly trying to get one.