jamming 1911 .45

[agd1953]

I have a Springfield 1911 and after shooting a few reload i made the gun jams. I load the magizine and release the slid and the round does not chamber. It sits sllmost flat on the mag like it hasn't moved much at all. when pushed toward the chamber to remove the shell i feel resisdence like the mouth of the case catches on somthing. I have tried factory shells and have not had a problem at all. It always occures when the slide is relaesed for the first shot. My reloads are: 225 grain Speer hollowpoints, cases are once fired CCI brass. Oal is 1.21, 7.1 grains of power pistol and cci primer. I think it may be a case of not crimping enough, crimping is a pain to adjust on my rcbs dies. Any way any suggestions would be appreciated.

 

[cavman]

I also agree that it may be a crimping issue. What is that reading? 0.4XXX"?
I has to be, if your OAL is fine (which it is)

I have a Dillon 650. Don't know your machine, sorry.

 

[rfwobbly]

I have a Springfield 1911 and after shooting a few reloads i made, the gun jams.

The most common issue with reloads for auto pistols is incorrect crimp dimensions. The crimp is there to erase the belling of the case. Unless the crimp is sufficient, the case is still belled out and jams going into the chamber.

You can easily test for this by dropping one of your reloads into the stripped barrel. When you hold the naked barrel by the receiver, you should be able to drop a round into the chamber and have it go all the way in using only its own weight. No fare tamping, or pushing. If the round does not go in, then you may need more crimp.

Simple measurements with a caliper can tell you what's going on. Read THIS THREAD RIGHT HERE

 

[agd1953]

I use a Lyman turret press with rcbs dies and shell holder. when you ask for measurments I assume you mean the case kneck outside diameter on a loaded shell?

 

[rfwobbly]

Read #3 above again. I just added info.

 

[rcmodel]

release the slid and the round does not chamber. It sits sllmost flat on the mag like it hasn't moved much at all.

Well, if the round is not even getting pushed out of the magazine because it hangs up on the feed ramp, it seems very unlikely it has anything to do with the crimp!

First, the Speer #4479 .451", 225 grain Mag-JHP is a Magnum revolver bullet designed for "Ruger only" .45 Colt & .454 Casull revolver speeds..
As such, it has a pretty wide exposed lead HP cavity, and a revolver crimp cannelure.

Suggested OAL for use in .45 ACP is 1.200" in the Speer manual, so your 1.210" is a little longer then they suggest.
That right there might be your problem.

Or, it could just be your gun will not feed them due to the wide lead HP cavity or a rough feed ramp.

As for setting the RCBS crimp die?

Nothing too it.
1. With the seating stem backed off a couple of turns, start a bullet in the case, then:
2. Adjust the die down just enough to remove the case mouth flair.
3. Adjust the seating stem down to the suggested seating depth.
4. Now, back out the seating stem a couple of turns, and continue to adjust the die body down until you get the proper amount of taper crimp. (.469" to .471" case moth measurement)
5. Lock the die body lock-ring.
6. Screw the seating stem down until it contacts the bullet firmly.
7. Lock the seating stem lock-ring.

Done!

rc

 

[delta5]

When I reload .45acp, I set my FCD to about 1/2 turn past contact and that seems to be a perfect crimp.

 

[Sidewinder72]

Had a problem on my 1911 feeding reloads. Got the factory crimp die. It works great on 1911 so I bought one for 9mm.

 

[Walkalong]

The FCD is not the answer. Using the proper bullets, a reasonable seating depth, and a proper crimp will cure his problems. Even if the FCD made his rounds chamber, it would only serve to keep him from learning to reload properly.

 

[Walkalong]

to about 1/2 turn past contact and that seems to be a perfect crimp.

May be perfect for your set up, but everyone has to set it up for their equipment. Too many variables to just turn the die "X" amount, and expect it to work for everyone.

 

[44junkie]

Be very careful using revolver bullets in a 1911. If you over-crimp the case mouth into the cannelure, the case mouth may seat too deeply into the chamber and cause an overpressure condition. I recommend you stick to ACP bullets and use a Lee FCD as mentioned. Crimp should be .001 -.002.

 

[243winxb]

I load the magizine and release the slid and the round does not chamber. It sits sllmost flat on the mag like it hasn't moved much at all. when pushed toward the chamber to remove the shell i feel resisdence like the mouth of the case catches on somthing.

By hand, pull the slide fully to the rear and release. Dont use the lever to release the slide. Another thing is, putting to many rounds in the magazine. Some will take one to many, like a 7 shot magazine but you can squeeze in the extra 8th one.