I have a howa 1500 in 300 winchester that i cannot get to group the 180gr sgk at sammi spec. Right now with nosler accubonds and 70gr of imr 4350 and c.o.a.l at 3.500" i can get 3/4" groups all day but they touch the front of the magazine box. I would like yo use the sgk but at 3.500" there is almost no bullet in the neck of the case. Any thoughts. Ive tried diffrent powders and still no luck at sammi length. Thanks.
180 sgk in howa 300 win.
- Thread starter Mtstalker
- Start date
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