Re: 280 AI
If anyone is interested. I have done a good bit of work with Reloader 17 over the past few days in my 280 AI. I'm using 168 Bergers. My Ackley has a 27 inch Krieger barrel, 1-9 twist. My goal was to get 3000 with the 168. It wasnt hard, and I'm still seeing very little pressure. If anyone has a quickload program, I'd like to see what it has to say. Mine got lost during a move, I'll get another in the group buy. The load I'm shooting for now is giving me about 3015fps and is shooting about 2 inches at 500 yards. I have a load that shoots one little hole at 100 but didnt do so good at 500.
I will list my results but please dont assume that any of this is safe in your gun without working up your load and closely watching for pressure signs. I had nothing to go by since this is such a new powder. I'm amazed at the lack of pressure so far.
Reloader 17, Remington brass, CCI large rifle primers, Berger 7mm 168 VLDs, Trued 700 action
All velocity is average of three shots unless noted and were shot at 100 yards. Oehler sky screens were set at 10 feet. Temp was in the upper 80s to lower 90s during the testing. Elevation 1575
49.0grs this was my starting load to confirm no pressure and to see if the bullet would stablize. It did and it was very mild. Bullets are seated well into the rifling for this testing. I feel this will generate the most pressure and maybe the best accuracy. I have since seated .009 farther off the lands and pressure is now even less.
FOR INFO ONLY! DO NOT CONSIDER SAFE WITHOUT CHECKING IN YOUR GUN!
51.0 2750fps One tiny hole
52.0 2830 One bullet hole -ES- of only 2 fps over three shots
53.0 2872 about 3/4" ES 6 fps
54.0 2905 about .4" primers started to flatten a bit.
54.5 2962
55.0 2980
55.5 2992
56.0 3030 1/2 moa @ 100 and less than 1/2 moa @ 500 most of the time.
56.5 3063
This is as high as I have gone, not because I have pressure but just because it seems I shouldnt be getting over 3000 so easy, and I ran out of time. Brass is not flowing, bolt opens easily, case heads arent swelling, primers are flat but I've had much worse. I think I can keep going and I will see how far I can go next week if I have time. 3100 should be no problem but if someone has quickload, lets see what it says. So far I really like Reloader 17. I also plan to try 4831, H1000, 7828 and maybe reloader 19 and 22 but the 17 is going to be hard to beat.
