300 Ultra Velocity
Well my dad picked up a new toy a Rem 700 SS BDL 300 Ultra mag and wanted me to test it for him. So I loaded up some 180 Accubonds and some 200 Barnes TSX bullets and went out in the yard to do some shooting. Accuracy wise the rifle shoots 3/4 of a inch or less at 100 yards but velocity wise I was a little disappointed. I am only able to get about 100 FPS faster with the Ultra then his 300 Win mag and both have 26 inch pipes on them. With 95 grains of R-25 and a 180 Accubond I was able to get 3230 FPS with the Ultra and with 92 grains of R-25 and a 200 TSX I was able to get 3111 fps. Now with his 300 win he shoots 76 grains of R-22 with a 180 Accubonds at 3125 FPS and with 73 grains of R-22 and a 200 TSX he shoots 2994 FPS. His 300 win is a factory Sako TRG-S. Should I try a different powder or does a 300 Ultra really need a longer barrel then 26 inches to get the smoking velocity you hear about? Is it typical to only get around 100 FPS faster then a 300 Win in a 26 inch pipe? Both rifle's were shot over the same chrony.
Fast, Flat, and Accurate