243 Winchester +p

Harvey_NW

WKR
Joined
Feb 13, 2019
Messages
1,956
Location
WA
Your starting load for N560 is VihtaVouri's max load. Their max velo is 2749 fps with a 23" barrel.
You don't have a 243 +p, you have a 243 + Unsafe.
VV's load data is garbage, my load in my 6.5 is 11gr over their published max and I didn't even get any signs of pressure on my ladder at 95° besides velocity increase at the highest charge. I'm a very conservative reloader and usually only go a grain or 2 over published max on a pressure test even in custom chambers, but after consulting with some experienced guys that favor VV I took their advice and it yielded great results.
 
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