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10mm Ammuntion => Reloading 10mm ammo => Topic started by: Pablo on May 28 2017 08:32:57 AM MDT

Title: Min OAL HAP 180gr
Post by: Pablo on May 28 2017 08:32:57 AM MDT
Quiz time......nothing like a 10mm challenge.  ;D

WHAT should the minimum length be with most all powders, max load, HAP 180gr?
Title: Re: Min OAL HAP 180gr
Post by: tommac919 on May 28 2017 12:33:45 PM MDT
1.250
Title: Re: Min OAL HAP 180gr
Post by: The_Shadow on May 28 2017 12:49:58 PM MDT
Well 1.2500" is the usual OAL for most all 10mm loadings.  Most manuals show 1.2500" to 1.2600".
WFN bullets have been loaded shorter at 1.2420" to allow a better tipping angle due to the wide nose meplat.
Some people will load longer to keep pressures down some at 1.2600" and even 1.2700" depending on their magazine and firearm combination and feeding abilities.
Title: Re: Min OAL HAP 180gr
Post by: tommac919 on May 28 2017 01:39:17 PM MDT
i just took a guess.. never noticed anything shorter in my manuals... but then not loading large meplate type ammo  :)
USU they are the heavy ones...
but he did mention most all powders , max , in  hap180
Title: Re: Min OAL HAP 180gr
Post by: Pablo on May 28 2017 02:11:14 PM MDT
That's just it. For the most part, HAP (or equivalent?) is 1.250" for most powders, but the Hornady book is 1.260" for the HAP bullet. Period.
Title: Re: Min OAL HAP 180gr
Post by: Pablo on May 29 2017 12:33:06 AM MDT
For practical purposes I control at 1.255. And don't get too concerned if +/- 0.002
Title: Re: Min OAL HAP 180gr
Post by: 10mmGarand on May 29 2017 05:41:26 PM MDT
Quote from: Pablo on May 29 2017 12:33:06 AM MDT
For practical purposes I control at 1.255. And don't get too concerned if +/- 0.002
Same here, regardless of bullet.