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Old February 9, 2015, 05:33 PM   #1
rebs
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45 acp crimp ?

How much do you guys crimp lead and jacketed bullets for 45 acp rounds ?
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Old February 9, 2015, 06:12 PM   #2
DavidAGO
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I just remove the flare for lead or jacketed.

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Old February 9, 2015, 06:23 PM   #3
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+1
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Old February 9, 2015, 06:56 PM   #4
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X3
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Old February 9, 2015, 07:17 PM   #5
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X4
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Old February 9, 2015, 07:27 PM   #6
zanemoseley
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It works out to about .470 if you measure right at the crimp. Get a case gauge and use that to help, if you don't have one you need one anyway.
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Old February 9, 2015, 07:46 PM   #7
Wreck-n-Crew
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Quote:
It works out to about .470 if you measure right at the crimp. Get a case gauge and use that to help, if you don't have one you need one anyway.
Never used a case gauge and most everyone here doesn't either. I have always used a the barrel and did a plunk test.
http://thefiringline.com/forums/arch...?t-543712.html
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Old February 9, 2015, 07:57 PM   #8
zanemoseley
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Personally I'd rather have a $20 case gauge than my Les Baer barrel floating around my bench and the rest of the parts disassembled. I guess its one thing if you use it to set up a die but I like checking a few rounds as I go.
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Old February 9, 2015, 09:19 PM   #9
Wreck-n-Crew
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Personally I'd rather have a $20 case gauge than my Les Baer barrel floating around my bench and the rest of the parts disassembled. I guess its one thing if you use it to set up a die but I like checking a few rounds as I go.
I get that from a spock perspective. However most find it more trouble than it was ever worth. Case gauges are set to bare minimums/tolerances that don't exist in more than %98 + of pistols. One piece of bulged base brass and you send a newbie into panic mode. Just happened recently. A case gauge only says "this may not feed in %100 of this pistol caliber". That is the only story it tells. Nothing else is to be learned from it. On the other hand a bullet that passes the plunk test will reliably feed in that particular barrel unless the powder charge or firearm is malfunct!

On another note why does the barrel need to be floating around and who cares about a Les Baer? It either comes out easy to plunk or it is in a revolver where it needs none! If you pass plunk in the intended gun then the OAL and diameter are good!
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Old February 9, 2015, 09:32 PM   #10
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If my crimp measures at maximum. 471 I'm good.
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Old February 9, 2015, 10:13 PM   #11
condor bravo
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Note that the .45 acp headspaces on the case mouth so no inward crimp should be used, just taper enough to remove the flare. Bullets intended for .45 acp use should have neither a crimping groove (if lead), nor a cannelure (if jacketed).
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Old February 10, 2015, 06:33 AM   #12
rebs
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Thank you for all the information, I appreciate it.
I have been crimping at .474 because my federal cases have a wall thickness of .011 when doubled for two sides is .022, the bullet is .452 which equals .474 for bullet and case. Does this sound about right ?

Do bullseye shooters use a crimp ? I read on Penn Bullets website that they recommend a crimp of .469 when loading their 200 gr lswc bullets.
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Old February 10, 2015, 07:37 AM   #13
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I have been crimping at .474 because my federal cases have a wall thickness of .011 when doubled for two sides is .022, the bullet is .452 which equals .474 for bullet and case. Does this sound about right ?
.452" for the 45....must be a cast bullet right? I can't recall the wall thickness, but your formula should be about there. What pistol are you loading it for ? Just plunk test it. If it passes it will feed providing pistol is in working order and charge is sufficient enough to fully cycle the slide.
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Old February 10, 2015, 07:45 AM   #14
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I load 45 acp lead and jacketed for two Glocks and a Colt Gold Cup
For the Glocks I have been loading Hi-Tek coated bullets from Bayou Bullets
For the Colt I load either lswc's or coated lswc's
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Old February 10, 2015, 06:10 PM   #15
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The rule is .469-.471, ya know what they say about rules...
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Old February 10, 2015, 09:25 PM   #16
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I did the barrel thing until it let me down. I loaded some coated, about 2,000 just a smig too long on 1/50. It took a sharpie on the case and bullet, run in a gauge, scrapping the color off to find it. This after three trips to the range fault isolating. Sharpie on just the case missed it. Sorted easily with the gauge even before I found my error. No one here has any errors but me. I'm amazed. My bullet puller is well broken in.
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Old February 10, 2015, 11:47 PM   #17
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Don't feel bad my puller has seen some work. Its a pain in the butt.
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