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piece of piss then.....go for it and see what happens,worst case senario they will be too messy.... at 50m I would seriously consider some of Roberts 151grn hp cast jobbies...driven at speeds...

what size critters are you intending to poke holes in.

so...your wanting to make a varmit projectile?????? cuase thats what normally happens when you run something 50% above what it was intended for.
if it holds together and groups it SHOULD be back to...