OAL Question


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TenDriver
February 24, 2013, 03:28 AM
I was loading up a few 44s tonight, 247 gr cast bullets I pulled over 20.2 gr of IMR-4227.

The question came up after I had seated and crimped of OAL. Lyman lists an OAL of 1.71 for 245 gr cast bullets. I measured mine at 1.598-1.060. Too deep? It's deeper than anything listed in the manual.

For comparison I seated a bullet to 1.71 on an unprimed / uncharged case. It seems way too shallow to me. Most of the other loads list 1.61, and I'm starting to think 1.71 may be a misprint. 180311

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rfwobbly
February 24, 2013, 09:41 AM
Your bullet should have a crimp cannilure to tell you where to seat.

JRWhit
February 24, 2013, 09:45 AM
The OAL from Lyman may be with a round nose, where as the other may be for flat point. At any rate Your bullet should have a crimp cannilure to tell you where to seat.

Jesse Heywood
February 24, 2013, 09:55 AM
With lead bullets for revolvers seat in the groove, like the round on the left. The 1.71 is not a misprint, but probably for a different bullet.

TenDriver
February 24, 2013, 11:20 AM
Thanks, Jesse.

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