940PC does not like hot loads = CorBon

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940PC does not like hot loads = CorBon

Postby GHEN » Thu Jun 08, 2017 10:47 am

Hi All,

I have a 940PC which is the revolver in .356TSW made by the Performance Center for Lew Horton. I also have a S&W 640-1 that was rechambered from .357 Magnum to .356TSW.

When firing Cor-Bon in both of these revolvers the cases swell so much that a wooden dowel is needed to tap on the ejector rod to get them out.

I recently ran some Federal 147 grain through both guns and they eject fine.

Can anyone recommend loading data to replicate the 147 grain Federal stuff?


Posts: 4
Joined: Wed Aug 10, 2016 9:34 am

Re: 940PC does not like hot loads = CorBon

Postby 356TSW » Thu Oct 19, 2017 11:30 am

My PC 940 Specials had the same trouble.

I greatly reduced the problem by honing the chambers of the revolvers with a ceramic hone.

Additionally, I make sue the chambers do not get oiled
Posts: 21
Joined: Thu Jun 16, 2016 10:16 am
Location: Hollywood, FL

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