.260 load

42-43gr H4831SC
CCI 200 Primers
Rem Brass

Anything in that charge weight range was doing great. I went as high as 47gr before stopping but anything over 43gr just started to open up. Of course you should always start a little low and work your way up. Check the link below for target results.

260 Rem build and groups.
 
With a COAL of 2.800, the 42.0g of H4831SC is shown in QuickLoad as generating 2625 FPS. 43.0 shows 2692 FPS. Both with Berger 140 VLDs. Of course there are so many variables, these numbers are suggestive of what's going on and may not be the same in your rifle.
 
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