hello everyone i've been loading sierra game kings in my Winchester 70 270 short mag but I haven't been able to find the greatest accuracy so im back at the drawing board. What i'm looking for is something in the 130/140gr area, powder im not too sure, I have some H1000 and R-22 on hand. Ive heard good things with the SM's and R-19. I'm leaning towards the Accubonds or maybe Barnes TSX as they seem to be good all around hunting bullets. I hunt in the 6000-9000ft range and its usually pretty cold 0-50 degrees and the critters I hunt range from Antelope to Elk. Does anyone have any suggestions and experience with the Accubonds or TSX in the 270SM's? Powder? Ill probably be using Fed 215 primers and Winchester brass. Any info would be great. Thanks!!!
I found that MagPro produced velocities that were 60 -100 fps higher that similar pressures with R-22, 4000MR, W780, IMR7828, SuperPerformance, VV N-560 with 140 gr Bullets.
I like the 140 Accubond for accuracy and high BC. I also tried the Berger 140 VLD and it shot well. I use the cheaper Ballistic Tips for practice but they do not have the same BC and shoot lower in my rifle. I would not be afraid to use Hornady SSTs.
I use Winchester Brass (to keep it seperate from my Norma cases that were converted to 6.5WSM and Federal 215M primers.
I've been doing load development also and I finally just found it. 63.5 grains of H4831sc and 130 grain Barnes TTSX shoots 1/2 inch groups out of my Tikka. Tried Rl 19, Rl22. Imr 4350 and nothing shoots better then H4831sc
I too am getting right at 3300 fps using RL17 and 129 grain Barnes LRX's in my Winchester model 70 fwt. I just finished the development of this load and it has proved very accurate so far.
I had just switched from 130 grain tsx's using RL17 and that load was quite good but wanted to go try the higher BC lrx and it seems to have worked out well. It has held it accuracy to 400 yards and hopefully will be able to confirm it on game this fall.