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fmj 10-31-2011 08:32 PM

.45 ACP questions? HEELLLLPPPP!
OK rolled up my first .45 acp rounds the other night. Did 25 total

They are not wanting to work. They dont want to feed up from the magazine. When they do feed the action isnt locking up.

Factory Winchester 230 gr JHP are ranging from 1.169 " to 1.207" and feed fine.

Factory 230 gr FMJ are running 1.266" and feed fine.

My 230 gr JHP are running 1.25" and do NOT feed fine!!

My Lyman 48 calls for a OAL of 1.243" on 225 gr JHP and a 1.275" on 230 gr TMJ.

Lee specs that came with my dies call for a Min. OAL of 1.190 on 230 gr. bullets.

Alliant data calls for a Min. OAL of 1.2

Where do i go from here? What advice can be given to me to help remedy my issue?

linuxuser3890 10-31-2011 09:14 PM

What gun? What projectiles? My loads feed in my 1911 but if you chamber a round more than a few times it seats it shorter but, that is bc the 1911 was never meant for hollow points and the feed ramp reflects that.

My loads:
185g sierra JHP 1.235"
200g XTP 1.235"
BOTH cycle well they just beat up the top round in the mag.

Sent from my Inspire 4G using FirearmsTalk

PanBaccha 10-31-2011 09:39 PM

My S&W 457 fires 45ACP without a hitch;
both JHP & FMJ's. What firearm are you using?

dunerunner 10-31-2011 09:40 PM

My factory loaded Speer Lawman 230 gr. FMJ are 1.270"

My reloaded Speer 230 gr. JHP are 1.215"

both feed fine in my Colt 1991A1.

From what you specified I would seat the JHP to 1.215" in an unprimed unloaded casing, still above the factory Winchester JHP's that feed fine and try one. If it doesn't feed, keep adjusting the seating depth until it does and use that as your standard.

I'm new at this but that is how I would work this issue. I will repeat that you should seat a bullet in an unprimed, unloaded casing and test feed.

JonM 11-01-2011 12:33 AM

did you measure your empty case oal?? if a case is too long it wont chamber.

Rick1967 11-01-2011 12:57 AM

Are you sure of your crimp? If your gun won't go into battery it could be an out of spec crimp. Try disasembling your gun. Take a round that is not leting the gun go into battery. See if it will drop into the barrel freely. I use a case gauge to check my finished rounds.

RMP1394-RLTW 11-01-2011 01:17 AM

Had the same problem when I started rolling .45 for my RO. Not sure if you have a match barrel or not but it is obviously a tighter chamber. Your Lyman manual should have a dimension for the crimp, double check it. Mine was just barely out of spec and it would not consistently chamber.


spittinfire 11-01-2011 02:04 AM

What type of crimp die are you using and how much?

Also, how much are you flaring the case mouth?

wooleybooger 11-01-2011 03:12 AM

you said the JHPs wont go "up" from the mag. remember that a JHP has a chopped off nose and if seated a bit long will not have time to settle into place on the ride up and into the barrel. that flat nose is looking for anything to grab. shorten the OAL a bit and watch the case flare

armsmaster270 11-01-2011 06:34 AM

Winchester JHP's have a rounder profile if you can't fix try them.

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