Large rifle primers in .45ACP????

[usmc0811]

I was in the middle of resizing and priming some .45 ACP brass this morning and accidentally used some large rifle primers. 12 out of the 80 pieces of brass were loaded with the large rifle primers. How many of you have had the same experience as me and what did you do? Will they be safe to load up and shoot?

 

[GT1]

I always thought LRP were taller than LPP.

 

[Hokie_PhD]

I can’t say I have.
But I’ve read of people doing so.

You SHOULD BE Ok if you follow standard safety practices of working up your loads again.

 

[jmorris]

LRP are taller, about .006”, than LPP on the CCI’s that I have and also have different colors of priming compound.

SRP and SPP are the same height though and I do have a few pistol loads where I use them vs SPP. In any case I wouldn’t suggest making substitutions like that rather start low and work up. In your case I would imagine the primers would feel “high” vs the ones with the correct primer.

Unless you seated them with a machine with a positive primer depth and they should look flatter.

 

[usmc0811]

I used my Lee classic turret press to re-prime them and some did feel a little stiff when priming, im guessing they were the large riffle primers. Ill take a closer look at the primers and see if I can tell the difference.

 

[murf]

the primer should be sitting proud of the case. put the cases on a flat surface with a bright light behind and you should be able to see which are proud. since there are only twelve rifle primer cases, i would just deprime and continue once you have found them.

luck,

murf

 

[usmc0811]

I flipped all the cases primer side up and lined them up in rows of 4 and inspected them with my eyes and fingers to look for high primers and its almost impossible to tell them apart. I found a few that seem a little high but not 12 of them. I might just have to trash them all and count this as a learning experience. I now have a large piece of gray duct tape around the large rifle primer box with "LARGE RIFLE" written on it with permanent marker.

 

[mdi]

I haven't done that (mainly because before I start reloading clean, inspected brass, I lay everything out on my bench; brass, powder, primers, bullets and check the labels)...

I'd be cautious because large rifle primers are .008" taller than large pistol primers and some problems may arise from protruding primers...

 

[usmc0811]

I haven't done that (mainly because before I start reloading clean, inspected brass, I lay everything out on my bench; brass, powder, primers, bullets) and check the labels...

I'd be cautious because large rifle primers are .008" taller than large pistol primers and some problems may arise from protruding primers...

I usually am organized and pay attention to detail but I guess not this time, shame on me. I measured a large rifle and large pistol primer and the difference was .005 making it hard to feel a significant difference.

 

[buck460XVR]

80 rounds is not many. Not even a trip to the range for my with my .45s. Only negative thing I could see happening from proud primers is maybe a FTF in a pistol, and maybe a jammed cylinder if shot in a .45ACP revolver. Difference in pressure, unless you are loading to max, would probably be insignificant if any. I would just use them as practice fodder and shoot them accordingly.

 

[1KPerDay]

I used my Lee classic turret press to re-prime them and some did feel a little stiff when priming, im guessing they were the large riffle primers. Ill take a closer look at the primers and see if I can tell the difference.

The LCT has VERY positive priming with a lot of leverage. I would be very surprised if you could tell the difference by feel or looking at them. I personally would load this batch with a starting load of powder, use them for plinking, and fix my reloading procedure to prevent this from happening in the future. I am not a lawyer and if you blow yourself up it's your problem.

 

[Walkalong]

Decapp the 12, re-prime with the correct primer. Re-use the LR ones later.

 

[crackshot258]

I flipped all the cases primer side up and lined them up in rows of 4 and inspected them with my eyes and fingers to look for high primers and its almost impossible to tell them apart. I found a few that seem a little high but not 12 of them. I might just have to trash them all and count this as a learning experience. I now have a large piece of gray duct tape around the large rifle primer box with "LARGE RIFLE" written on it with permanent marker.

You should be able to run them through the de-priming stage and remove the LRPs. Just go slow and they should come out easily. You can probably even re-use them in shells that need those. I've taken live primers out many many times with no problem. Dillon even will tell you that it can be done, at least on their machines. You will want to catch them and keep them separate from fired ones.

 

[Stevenvalleyky]

As walkalong, crackshot, and others have stated, you havent loaded them yet and depriming those 12 should take 2 minutes going slow and safe. Definitely dont trash them.
I use a universal depriming die on a seperate old single stage press to keep from scratching up my full length dies since I wet tumble and want clean primer pockets. The times I have had to deprime live primers has gone seemlessly and all primers fired perfectly when loaded a second time.

 

[FROGO207]

If you seated them in so that they are at least flush and are not using MAX loads I would also just load them and shoot them. You will probably never know the difference other than the fired brass will have shallower dents in the primers because the cups are harder to withstand higher pressures. I would not however, make a habit of doing this.

 

[Walkalong]

Unless the pistol doesn't have the oomph to set them off. Having to un-do a mistake makes us less apt to repeat it.

 

[Reloadron]

From our friends at SAAMI:


Unlike small pistol and small rifle which share the same dimensions Large Rifle and Large Pistol do not. As several others have mentioned the large rifle has increased height which could be as great as 0.018" depending on where they fall in their allowable ranges. Looking at the cases, even if your case comes in with a maximum pocket depth of 0.123" a minimum height primer will come in at 0.123" making for at best a flush fit and the odds are against that.

I was in the middle of resizing and priming some .45 ACP brass this morning and accidentally used some large rifle primers. 12 out of the 80 pieces of brass were loaded with the large rifle primers.

Considering it is only a dozen cases which likely have high primers I would just de prime them and run them again. Will they work? Yes, depending on gun and firing spring they will likely go bang but rather than screw around for a dozen I would just re prime them and file a lesson learned.

Ron

 

[Jim Watson]

But he can't be sure which 12 out of 80.
I would either do as FROGO says and shoot them or decap them all in an act of self flagellation to encourage greater care.

 

[Reloadron]

But he can't be sure which 12 out of 80.
I would either do as FROGO says and shoot them or decap them all in an act of self flagellation to encourage greater care.

Ah, that being the case I would likely just shoot them.

Ron

 

[FROGO207]

If the primer pellet got crushed badly they might not even go off when struck with the firing pin. As an experiment I tried crush fitting some LR primers in a 45 LC Blackhawk and they dragged on the back of the recoil shield slightly and only 2 of the 6 would fire.

 

[Walkalong]

But he can't be sure which 12 out of 80.

They are likely to have a different color sealer on them which he could see through the flash hole. But if he can't, you're right, he'll just need to load them up and shoot them.

 

[usmc0811]

I decided to try and feel for any raised primers and found 10 or 11 that I could really tell were a tad bit sticking up, then continued and fond a few more that were possibly high as well and deprimed them with zero issues. Weather or not these were the actual rifle primers I will never know but im guessing I got the majority of them. There might be a few I missed however I went along and loaded them up to the minimum powder charge and will shoot them myself not allowing anyone else to shoot this batch in case of any issues. I'll let you know how it goes. Thanks everyone for the advice and this will be another never ending learning experience.

 

[murf]

i like your attitude here. loading with a minimum charge is the way to go, imo.

luck,

murf

 

[MEHavey]

Don't worry about it.
If they do slamfire, all you've got is a Thompson submachine gun.

 

[kerreckt]

I would either deprime or load and shoot them. I have known people using LRP in place of LPP with no negative results. Do what you are most comfortable with doing.