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260 subsonics

bohem

PVA's HMFIC
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Jan 6, 2009
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OK, per my own usual advice I've used the searching options as well as checked the reloading subforum in the subsonics thread and didn't come up with anything as well as the online sources...

I'm starting with some TrailBoss and 160gr RN's to load subsonics in my 260. Using a little fudging of numbers and SWAG I started at 11.6 and went down to 9.6gr of RB under a 160 Hdy RN

I haven't pulled the trigger yet on anything, but does anyone have some real advice to starting data for TrailBoss subsonics in the 260? I'm using CCI 200's for primers in FL sized and prepped Win 243 brass necked to 260.

I have an 8.5tw 24" LR-260 upper these will be coming out of. I just don't particularly want to be hammering bullets from the bore to start off, so a supersonic datapoint to start from is welcome.

TIA guys.