Thread: Variations in Projectile Shape

Greetings All,
Recently I had noticed a difference in projectile between older and current Hornady Interlock projectiles in .303 and .22 calibre, Today I was working with some 140 grain projectiles, also Hornady interlock. The 22 cal projectiles were the 55 grain flat base with cannuelure. I don't have any of the old ones to compare but the current projectiles have a crush length of 55 mm versus the old ones at 56 mm. The 6.5 mm 140 grain current projectile has an obviously sharper ogive than the previous batch and will chronograph the two to see if there is a velocity differs. The .303 174 grain round nose projectiles current production have a noticeably more parallel and blunter shape than the much older batch (price sticker says $5.31). The newer batch can be loaded quite close to the rifling in an almost new two groove barrel. The newer batch gives over 100 fps more velocity point of impact is higher on the target. These are super soft loads and may be more sensitive than normal pressure loads.

Thoughts anyone?
Grandpamac.