I am working up some .223 loads for a P Dog hunt and just tried Nosler Balistic Tips and Hornady V-Max 55 gr bullets for the first time - as well as some other bullets.
Across the board, the 55 gr V Max loads shot 2.8 to nearly 4 inches higher than 55 gr Speer Spitz, 55 Sierra Spitz, 55 Nosler Balistic tips all shot at 170 yards today.
Has anyone else had this experience? It really surprised me and messed up some of my test groups as I use those 4 square Leupold targets and like to get 4 to 6 groups per page. Shooting at the lower square with Vmax planted the group on top of the group fired on the upper square.
I believe I'm within limits recommended by various manuals. I'm using BLC-2 in 3 different increments: 26.3, 27, 27.5 gr, LC brass 1x fired, trimmed, deburred flashholes uniformed etc., CCI 400 primer.
All bullets seated far out: OALs were Hornady 2.42, Nosler 2.416, Speer 2.3, Sierra 2.323 as my Ruger 1 has a long throat and seems to do better if the bullets don't have to jump far.
Rifle is a Ruger #1, 24 barrel 1:10 twist.
Sure would be interested in what others can suggest. I've never seen one brand / model of jacketed bullet shoot this differently when powder levels were similar.