.45 auto rim crimp

[tomahawk223]

I have been reloading the .45 auto rim for my 625's and have been using my acp taper crimp die. has anyone used a roll crimp and notice any difference with performance. also anyone use the Matt's 240 gr HBWC, I just started experimenting with them.

 

[taz666]

Roll Crimping Cast 45ACP?

 

[rockquarry]

I use only a taper crimp on both .45 ACP and .45 Auto Rim. I tried roll crimping some years ago and accuracy was very slightly better using the taper crimp in a revolver. I think you'll see little difference between the two crimps, but there are always exceptions. Compare both crimps by shooting groups from a benchrest at 25 yards.

 

[Mike SC Hunter]

Been reloading auto rim since Moses parted the Red Sea......Using my ACP taper crimp die with ZERO problems..........WHY would I want crimp them?

 

[Ivan the Butcher]

Over 40 years ago, my Lyman All American standard dies had a roll crimp. I loaded some big 45 Colt cast bullets in Auto Rim. Never saw a need to use the roll crimp once I got a tapper crimp die!

Ivan

 

[toad67]

Are the Lee FCD's, roll or taper crimp in 45acp?

 

[H Richard]

The only reason might be if you are loading up to a really heavy load. For any "normal" or target load, the taper crimp id sufficient.

 

[TheTinMan]

The only reason might be if you are loading up to a really heavy load. For any "normal" or target load, the taper crimp id sufficient.

Or if your bullet has a crimp groove.

I use a Redding Profile Crimp die for any “roll crimp” applications. That die lets me go from a normal taper crimp up to a hard roll crimp, depending on bullet and load.

 

[470Evans]

I reload the 45 Auto Rim for a Colt and a Smith 1917. I am usually using Lyman's 454424 or 452423 cast bullets and I use the Redding Profile Crimp die as well.

 

[alwslate]

I roll crimp my .45 AR cast bullet handloads like any other caliber. My dies came with a taper crimp die and I bought a roll crimp die.

 

[BLUEDOT37]

Love those Auto Rims, they look like little fire hydrates

Ditto, if its got a cannelure or crimp groove roll crimp it. If it doesn't don't.

Of course if you roll crimp a 45ACP round you have to use moonclips to ensure reliable ignition.

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45AR with Sierra 240gr JHCs, roll crimped
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More roll crimped 45ARs
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[243winxb]

Check the last round in the cylinder, after firing the others. Has the COL gotten longer? If more then .005", a roll crimp is needed into the crimp groove.

The lswc around 240 grs are more accurate. Longer bearing surface, straighter alignment entering the forcing cone.

 

[sophie]

Been reloading auto rim since Moses parted the Red Sea......Using my ACP taper crimp die with ZERO problems..........WHY would I want crimp them?

^^^^What he says goes for me too.^^^^

 

[gwpercle]

I let the bullet dictate the crimp.

Smooth sided 45 acp bullets , that usually do not have a crimp groove, get a taper crimp just like a 45 acp round .

If the bullet has a crimp groove , like a Keith style SWC , then we roll a crimp into said crimp groove like it should be ... crimps rolled into the bullets crimp groove , hold extremely well .

My advice is to let your bullet be your guide ... crimp as it directs !
Gary

 

[Model19man]

Are the Lee FCD's, roll or taper crimp in 45acp?

The Lee Factory Carbide Crimp die in 45 ACP is a taper crimp die. Very accurate is what I have found using my Kimber 1911.

 

[Chuck Edwards]

I found out the hard way that coated lead bullets don't work with taper crimp in a .45 ACP revolver. Using 230-grain RN ammo that worked fine in my autoloaders, I couldn't make it through a full moon clip without the last bullet falling out of the case - my 22-4 became an inertial bullet puller. That never happened with uncoated bullets.

My solution was to switch to 225-grain coated lead RNFPs and use a Redding profile crimp die to crimp into the groove.

 

[biku324]

^^^^Yes.

I use 250-255 grain LSWCs a lot, so a roll crimp works well on those.

 

[StrawHat]

I have been reloading the .45 auto rim for my 625's and have been using my acp taper crimp die. has anyone used a roll crimp and notice any difference with performance. also anyone use the Matt's 240 gr HBWC, I just started experimenting with them.

I had to look up that bullet to see what you are using. Looks like a nice one. I use the SAECO 453, a 240 grain cast wadcutter in ACP brass.Taper crimp has always worked best for me. I have also used heavier bullets, a taper crimp and good neck tension are all that is necessary.

Kevin

 

[rockquarry]

I had to look up that bullet to see what you are using. Looks like a nice one. I use the SAECO 453, a 240 grain cast wadcutter in ACP brass.Taper crimp has always worked best for me. I have also used heavier bullets, a taper crimp and good neck tension are all that is necessary.

Kevin

You're right; works very well.

 

[dsf]

I still have about 1K of the Penn Bullets full wadcutter and use a light roll crimp. I'm supposing a taper would work just as well, given my overall shooting capabilities.