.45 ACP +p loads?

ErikT

ErikT

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All right, Officer, I'll move along...
Anyone have any +P load data for .45 ACP? I've ordered a carbine length barrel for my Savage bolt action, and wanted some high-powered loads for plinking at longer range. I know the ACP isn't going to win any power matches beyond 75 metres or so anyways, but I wanted to see how far I could push the old girl.

Erik.
 
it's not the rifle/pistol , it's the brass- you push it much above 19/21 kpsi depending on who you talk to , and it fails just ahead of the extractor groove- that's how numbers like the 451 detonics and others get ahead- they use RIFLE brass- typically shortened 308 winchester- and the 45 is designed to burn it's powder completely in 5 inches of barrel, so adding a lengthof tube it isn't going to help much velocity-wise
 
it's not the rifle/pistol , it's the brass- you push it much above 19/21 kpsi depending on who you talk to , and it fails just ahead of the extractor groove
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True but only in a barrel that does not have a supported ramp & just has a small portion of brass to contain the pressure. I don't know if this applies to the Savage rifle or not.
 
colinjw said:
True but only in a barrel that does not have a supported ramp & just has a small portion of brass to contain the pressure. I don't know if this applies to the Savage rifle or not.
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that's why i quoted 2 figures for failure- the 19k is your typical 1911 and others with an unsupported head- the 21 is for something with a fully supported- ie an aftermarket, fully supprted head-
 
t-star said:
that's why i quoted 2 figures for failure- the 19k is your typical 1911 and others with an unsupported head- the 21 is for something with a fully supported- ie an aftermarket, fully supprted head-
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FYI

Back in the '80s (a long time ago, I know) I was the keeper of the chronograph at Sharon gun club. A member was complaining of excess recoil of some handloads he had got from a friend that he was using in his stock combat commander (Colt). His friend was loading a 228 gr swc bullet I had sold him (that's right, 228 gr, from H & G) over an unknown powder charge (probably 231). He left the gun and ammo with me to chrono later that afternoon (it was a long time ago, was legal then).

I set up the chrono on range three and proceeded to test his ammo through his gun;

The first round went 1249 fps!!! and the recoil was vicious, no wonder he was complaining! That is a 228gr bullet going 1249 fps out of a stock 4 1/4" Colt barrel! Never found the brass. Who needs a .44 magnum!

The second one went 1155 fps, and the third 1220 fps. By that time I had had enough and stopped. The chrono was an Oehler and was right on calibration. There was no damage to the gun that I could see and no blown out cases. We were using military brass in those days and that says a lot for both the brass and the gun. Never found out what the load was but must have been near double charge.

I have seen other shooters suffer blown case heads in the .45 acp but believe it was due to an obstructed barrel (squib) in most cases. The guns were not damaged, but the ruptured case blew the magazine out the bottom of the grip and splintered the grips, which was one of the reasons the Pachmayr steel lined rubber grips became popular.

Just my experience......
 
I think that this one was a little too hot.



45ACP01.jpg
 
Just to clarify, I will be using cut down rifle brass to make some heavy-duty cases for this project, so I'm not too worried about the pressure destroying the case heads (plus, in the Savage rifle, everything is fully supported and the entire action is built for the 7mm WSM, so I think I'll be fairly safe, barring lapses of common sense). I was just wondering if there was any data out there, or if I'll have to start the whole project from scratch. I'm thinking of trying small quantities of rifle powder designed for small cartridges, but I would like to see if anyone else has an actual recipe as a starting point.

Erik.
 
since you've got all that steel and are going to be using rifle brass, why not go the whole hog and consider the 460 ROWLAND?- it's one step above the plus p ( 23,000) and at least it's not unknown ground- however, you use generoous amounts of PISTOL POWDER like longshot- i don't know of any that take rifle powders unless it's something like 2400 or ww296
 
8.3gr of power pistol behind 200gr FMJ bullet. that was the +P load published on Alient website before they changed the data.

I wouldn't bother with cutting down .308 brass. just get some .45 super brass
 
IM_Lugger said:
8.3gr of power pistol behind 200gr FMJ bullet. that was the +P load published on Alient website before they changed the data.

I wouldn't bother with cutting down .308 brass. just get some .45 super brass
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there are a few starline dealers here in canada, just get their 45 Super brass and use 45 Super data
 
Gunnar has some load info for his .45-08 loads posted somewhere.... I think he was using Longshot powder and getting close to 1500 feet/sec out of a 5 inch barrel with 200gr bullets.

Old post on Armco's web site,
The Armco .45-08 brass is back in stock :) This super-strong .45ACP brass is again available. Made right here from cut-down and neck-reamed commercial .308 brass, we have documented over 1000 ft-lbs of energy from a standard 5" barreled 1911! 200 grain bullets at 1500 seems to be all the primers will tolerate, and and deliberate proof-type overloads only generate a LOT of recoil and pierced primers. This is tough brass! Sold with a fact sheet/loading guide in 25-packs for $25 plus $4 shipping. Tax extra. Want to buy in "bulk", let's talk :)
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