This is a discussion on Accurate 2520 loads within the Ammunition forums, part of the M14 M1A Forum category; I bought a sealed 8 lb. jug of Accurate 2520 at a garage sale.
Does anyone use this powder for loads in the M-1A?
AA2520 may meter like suger just like other ball type powders but ball powders are the worst for temp stability. I myself stick with both of the 4895's, Varget, IMR3031, 4064 these powders are alot less temp sensitive.
This is just my .02 but when your 8lbs is gone move on too a new powder.
I have used AA2520 in a Rem 700 that I accurized myself. Hands down the best load for it was 43.5 gr with a 168gr SMK. Regulary shot 1.5"-1.0" at 300 yards with it.
It should work well in your M1A with the right load.
The load you quoted here have you chronoagraphed it and checked it's FPS in your rifle/rifles. What does it do @ 100 yd's aposed to three hundred. I would think if you got that good results @300 then it should shoot one hole groupes @100 yd's. I have been trying to find a factory duplication load for the Federal Gold Metal Match 168gr. So far using Federal onced fired factory brass that i bought a case of loaded ammo and using there match primers,(210M) and Sierra's 168MK same one federal uses but i haven't figured out what powder they are using. I took one factory round apart and weighed the powder charge and it weighed 44.5 gr's. I tried matching it to other powders and it looked exactly like Winchester 748. It is a ball powder and everything looked the same as far as color, texture etc. I tried that load but it did not come that close to the factory. Speaking of the factory i can get five shot group's in a nickel size @ 100 yd's in my M1A Super Match. It is so consistant and so accurate it's hard to believe i get that tight a group with just the iron sights that are on the rifle. All that being said let me know your results and or info in regard to this question. Thanks, Rick Sr.59