45 2.1
Active Member
I'll give another perspective on what is wrong with this particular design. If you look at the bullet, all the bearing bands are basically in the center, it has a very long GC shank and basically a non bearing nose. These things allow the bullet to tip when it gets started with very, very little to straighten it up. That thin GC back there does little in that regard after a certain pressure level. The percent of bearing is a little over 51% which is too low for good results (based on frnkore's drawing). There have been "fat" molds made which will cure those problems though (provided you know what to do with one). If Ben were to freechec that plain base version with the right alloy, I suspect he could go to about 2,100 fps with decent accuracy. If you have a tight bore rifle, then it would help also and you would be able to go faster yet.