I had the opportunity to take six bullet 6.8 SPC combinations to the range and test terminal performance. My goals was to verify the bullet I would be using for deer and hogs. I tested performance using a bullet “trap” that I have used for a couple of years. The trap consists of a gallon jug of water (typically an empty milk jug) in front of a box of phone books and magazines. The water jug provides the hydraulic medium to effect bullet expansion/mushrooming and the box catches the bullets and provides relative penetration performance. I’ve used this bullet trap with .223 Rem to .300 Win Mag and have seen similar results on elk I have harvested with a .270 Win. With that said, I realize this method of testing is not as good a medium as ballistic gelatin but that’s a whole other story and to inconvenient to use as a private individual. More details on the bullet trap can be found in this on-line article. Note, I now use a single phone book in front of multiple magazines like G&A, Shooting Times, etc.
These are the bullets and their respective muzzle velocities shot from and 18-inch PSA SS SPR barrel. There was a 15+ mph headwind and the temperature was 48F.
85gr Barnes TSX - 2815 fps (31.0gr AA2200)
90gr Sierra HP - 2775 fps (30.5gr AA2200)
95gr Barnes TTSX - 2805 fps (29.6gr AA2200)
110gr Hornady V-Max - 2615 fps (factory)
110gr Hornady HPBT - 2640 fps (factory)
120gr Hornady SST - 2525 fps (27.5gr AA2200)
Here is a picture of the 6.8mm (0.277”) bullets used with some .270 Win bullets I typically load on the right side for reference.