We all talk about certian rifles that like or shoot better with certian bullet weights.

Does bullet weight and rate of twist impact muzzel volicity or accuracy .

ie. my 30.06 will spray Federal premium trophy bond 165 gr all over a target at 100 yards.
Yet at the same distance with winchester super X 180 gr groups tightn to -2" groups

So what is the culprite. Bullet speed , weight, or rate of twist of my rifle? or any rifle for that matter?

Ps the rifle is a sporterized p-17 (not a new one by any means)

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