Thread: Fast burning powder in a short 243

Originally Posted by NewbieZAR

I get 2950fps with a 85gr and 44.5gr 2209 in my 16" 243. But im gonna drop to 44 as its a little hot with the sierra 85gr varmint i use now, worked fine with BT speers.

The 87 vmax will no longer group well as the stability is too low in my 10twist barrel being this short. I get about 1.5" at 100 with it where the sierra flat base shoots bug holes.

Thats with Winchester brass and federal GM primers