.45ACP - Why different primer sizes?

[stilly]

I was batch sizing my 45acp brass, and discovered, while using my primer pocket cleaning tool, that some brass has a smaller primer pockets than others. Specifically, the only brand I've yet seen with the smaller pockets is Blazer Brass.

Any particular reason for this? Is the brass with smaller pockets meant to be used with different powders? I'm a beginning reloader and so don't have experience with this.

Because they are panty waisted asshats that do not think about us but rather only about themselves. THAT is the only reason why.

Oh, and something called Brazilliance...

Here is how you detect them. Flip them over, like a group of 5-7 or whatever your hand can hold at a time.

The LPP will be very obvious while the SPP will also be very obvious. But if you only flip them over one at a time, some of those LPP look like SPP sometimes. It is an octagonal illusion that they have put in place to trick you.

But if you are smrt like me and you wet process, then after you pull them out of the wash and dry them, you can flip them over in groups and if you have any doubts, keep a LPP primer pocket cleaner with you and just jam that cleaner up to the flash hole in that case that is in question. If it goes all the way into the pocket then fine, it is an LPP, if it fails to go in, then you know what to do with it...

Then later on you can load the cases with SPP pockets up with SPP or better yet, SRP and flip the bird in the air each time you do it...

And if you write Stilly in for president in 2015 then I will put these fools on blast for doing this to us!

[orangeusa]

There is a special place in hell reserved for whomever created SPP 45acp.

At first I thought this was harsh, and then realized I have a can of SPP 45's I don't know what to do with.

I HATE this idea (SPP and LPP in 45ACP). Just saying.

Call it something else - like a 45 Green Party version. I dunno.

Just don't make ammo (from same mfg) in LPP, and suddenly shift to SPP.

And there is NO marking difference on like WW brass.

.

[jericho89]

At first I thought this was harsh, and then realized I have a can of SPP 45's I don't know what to do with.

.

You can always just send them to me

[rcslotcar]

I've loaded thousands of spp .45acp and shot them without issue. I have collected thousands of police range pickup .45 brass. I have stopped using my 40+ year old lpp brass and only use newly collected spp brass. The brass may have crimped primers and may need swaging. They use common spp primers, there is "no different" primers used.

[choo2x]

I loaded a few hundred small primer 45acp loads using a few grains less powder than my standard load and they worked fine.

I've loaded the SPP brass I've come across (Federal and Speer) with the same charge I use in LPP brass, and I lose ~20 fps. Without a chrono, I wouldn't have noticed shooting them back to back.

I loaded all the SPP brass I've come across and shot them at a local IDPA match (which is a lost brass match). My pistols cycle fine with either brass, so it's not an issue to me. I'm happy to donate the SPP to the lost brass pile.

[balmo]

I am saving all spp 45 until I have enough to reload in batches. Yea it sucked the first time I saw a spp 45 but I am getting better screening between the two.

[kalapa]

I am saving all spp 45 until I have enough to reload in batches. Yea it sucked the first time I saw a spp 45 but I am getting better screening between the two.

I do the same thing. I set them aside until I get enough collected then I batch load them. Next time at the range I shoot em and don't worry about picking them up. It's quite liberating not to have to hunt down your brass for once!

[jericho89]

I've loaded the SPP brass I've come across (Federal and Speer) with the same charge I use in LPP brass, and I lose ~20 fps. Without a chrono, I wouldn't have noticed shooting them back to back.

It has been a while since I researched this but if I remember correctly it is the slower burning powders that will have more drastic variations and issues.

[bigbossman]

.45acp with small primers is the work of the devil. It is not natural, and not the way God intended.

I destroy every one I come across - it is an abomination and against natural order.

[23 Blast]

I've loaded the SPP brass I've come across (Federal and Speer) with the same charge I use in LPP brass, and I lose ~20 fps. Without a chrono, I wouldn't have noticed shooting them back to back.

OK - that's reassuring. As a beginner, I'm doing everything via batch method, so I suppose I'll just make a pile of the SPP brass and load them later. I imagine it'll be irritating to me once I get confident/proficient enough to use the turret as it was meant to be used.

[gunboat]

Be glad you don't have to muck about with the old F A 45 primers as well --
After wwII there was a ton of surplus 30's ammo --
The 45 acp FA primers were .254 dia if I recall correctly --

[stand125]

I use Magnum primers for all my pistol rounds and have had no issues with 45ACP SPP. I actually like how easy the SPP primers seat. Some LPP can seat a little tight in certain 45ACP brass, but the SPP seat like butter.

[J-cat]

Use the same loads. The SPP will deliver a couple FPS less velocity.

[J-cat]

I loaded a few hundred small primer 45acp loads using a few grains less powder than my standard load and they worked fine.

Why would you do that? I mean load less powder for a primer that delivers less velocity to begin with. How much less? 3 grains of Bullseye instead of 5? The gun won't cycle with 3 grains of Bullseye. Are you shooting them out of a revolver?

[Squ1dward]

Glad somebody asked this question. I have a bunch of these and thought I was doing something wrong when I tried to swage the primer pocket on my rockchucker and it would not work. Even tried to dril it out and that didn't work. Just have a pile of mostly Blazer and Speer that have this smaller primer pocket. Guess I now know how to reuse them. Thanks for the info everyone.