Something to share

[Kurt]

Chris.

I have seen a lot of bullets with lighter land cuts at the base then the top behind the ogive at the beginning of the shank.
Yes I see less with the heavier bullets with a blunter nose then the prolate. Take the GG 50 that type of nose really gets pushed back even with a harder alloy. Also I see the PP what I call a wasp waist where the center of the shank is thinner then the base and nose.
It is not uncommon to see lite engraving at the base. This could also come from the tight chambers I have that will not except a GG bullet. I sort of wonder if when the charge goes off and that bullet gets bumped in the hinder that the fron portion out of the case neck expands while the case neck is holding back what is still in the case and it never gets fully upset??????????
As far as the gain twist, don't have any experience with it but this is in the works.