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Old 08-30-2021, 08:28 AM
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Rifleman200-10X Rifleman200-10X is offline
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Join Date: Jul 2021
Location: Papillion, Nebraska
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I have an original 1873 Winchester rifle in 38WCF, aka 38-40. The problem with both it, and your 44-40 is that both were originally loaded with black powder, and the slightly compressed full charge supported the base of the bullet, therefore it couldn't be pushed further into the case. I use either Unique, or Trail Boss under the 180 RCBS "Cowboy" bullet, but neither one will support the bullet, and you should never compress Trail Boss. The trick is to have a bullet with a pronounced cannelure, and most importantly, to trim all your brass to a uniform length to insure a consistent crimp. I seat my bullets to length with a standard seating die first, backed off to not crimp. Then I use another standard seating/roll crimp die with the seating plug removed to form the crimp. Seems to work better than seating and crimping at the same time. Never have had a problem using this method, and I'm sure the same will hold true for your 44.
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Last edited by Rifleman200-10X; 08-30-2021 at 01:18 PM.
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