Thread: Reloading equipment

Originally Posted by JasonW

Just thinking - is there an obvious reason why would I use 151gr projectile in subs instead of say 220gr?

If I am restricted to 1075fps to remain subsonic and gravity has the same pull on any object then increasing the projectile weight means more energy at the point of impact surely? Or is it a case of subs being so under powered that the increased projectile weight is totally negligible like 40gr vs 42gr .22lr?

Obviously a goat headshot with a 155gr isnt going to be any better off than a goat headshot with a 220gr but maybe 220gr would have a bit more momentum behind it to expand more or a bigger chunk of lead to tumble.

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Comes down to the rate of twist on your rifle. Your twist rate might not be able to stabilize a 220gn projectile and 1050fps.



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