Hornady LnL: WIN .45ACP Brass in Hornady Sizer/Decapper

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capreppy

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Jan 27, 2011
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Fort Worth, TX (Saginaw)
A little background:
I Size / Decap / Prime in batches to 100 to 500. I am still a noobie reloader and this gives me the opportunity to check each piece of brass several times over as well as check the primers for any high or misplaced primers.

After I batch Size / Decap / Prime, then I'll complete the ammo either at that sitting or another (usually within a couple of days).

I spent several hours Sizing / Decapping / Priming 1500 R-P .45ACP Brass. All went well. No issues whatsoever.

I wanted to add the Wincester brass I have to the reloading rotation so I grabbed my tub of Winchester Brass. This brass is sparkly clean. This is one time fired (mostly by me (WWB), but did buy some from a fellow boardmember who also shot WWB) and to my knowledge, has not been previously reloaded (at least not by me). It went several hours in a tumbler of Walnut & then 2 hours in Corn Cob w/Flitz. I use gloves (and safety goggles) when I do any reloading work so there is no body oil or other contaminants.

Downstroke (size / decap) wasn't too bad, but it required more force than the R-P brass. The upstroke was terrible. I almost had to wrestle the piece of brass free from the sizer. I had to do this for all 500 pieces of Winchester brass. I did run several R-P brass afterwords and had NO issues with the down or up stroke. I did clean the sizer prior to doing the Winchester brass and verified the decapper was still in good shape. Did think about shell plate alignment, but R-P brass has no issues so likely issue is specific to Win brass

Most of the Winchester brass comes from WWB. When I shot them, they had a fair amount of recoil (high pressure?). The primer was pretty flattened (been told this is a sign of a high pressure round).

My theory and would love opinions / thoughts on it is that these rounds were higher pressure than the R-P brass and therefore expanded more than the R-P brass. Because of the expansion more force was necessary during sizing.

Am I off base? What else could cause this?
 
I also use the LNL AP press and only use WW brass for 45 ACP. I have not had any difficulty but do know that more effort is needed when sizing brass that has been previously loaded on the hot side. Also, the case wall thickness of WW brass tends to be greater than that of RP brass which will make it fit tighter in the sizing die.
 
Since I load 5.0gr W231 under a MBC 200gr LSWC, I hopefully won't have to go thru this again or at least not to the extent I did today.

Seems like any Winchester brass I find regardless of caliber, the primer is pretty much flattened out on all of them.
 
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