Originally Posted by BWilson
Originally Posted by antelope_sniper
Originally Posted by BWilson
I don't have any #s handy, but all I know is if I load the 125 NBT to 2.255" I get 2-3" groups, if I take them to a belt sander and buzz the polymer tip off flush with the jacket they shoot sub-inch. I can only assume it's the jump to the rifling.


I would call that good test of your hypothesis.

Now that you mention it, dad trims the tips the 200gr NBT's in his .338 WM, and it that rifle, it helps tighten up the groups as well.

Thanks.

Have you know the H2o volume of your cases?


Sorry, I don't know the water volume, just that a fireformed LC cases and Sig mfg 300 HAM'R cases have the most capacity.



Removing the plastic tip would not change the jump to the rifling.

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