Originally Posted By: LowangYes is is not so temp stable but i did find my most accurate load to be 123 SMK with 37.5gr of RL15.
I had good results with AR2209 (H4350) with the 123's but was a very compressed load. 130gr VLD's went well with AR2209.
I did an ocw test with 120gr NBT and AR2208 (Varget) at one stage, I dont have the target anymore but 38.5-38.8gr gave sub .5 moa groups in 10-15mph gusty wind. The info i have recorded in my reloading book for this is as follows
load- group size "- vertical "- at 100 yrds
37.0 --- --- -2941 fps
37.3gr- 1.05- 0.59
37.6gr- 1.60- 1.46
37.9gr- 0.17- 0.60
38.2gr- 1.27- 0.69 -3022 fps
38.5gr- 0.46- 0.08
38.8gr- 0.56- 0.10
39.1gr- 1.10- 0.60
A i was not allowing for wind jsut shooting round robin style to get an idea of what the laods were doing id pay more attention to the vertical component then the actucal group size. velocity for 37gr and 38.2gr reference.
I will be testing with Ar2208 when i get my rifle back as i intend to be using ADI powders only.
WARNING DO NOT ASSUME MY LOADS ARE SAFE IN YOUR RIFLE ALLWAYS START LOW AND WORK UP.
Regards Sam.
Sam,
Thanks for the data.. I did some more shooting today (35 degrees F) at 200 yards and could barely hold 1 MOA with the same charge of RL15 that produced .0 and .1 MOA at 100 yards (70 degrees F) & .2 and .3 MOA @ 300 yards (57 degrees F). I loaded 30 rounds in groups of 3 starting at 36.6 in increments of .2gr of Varget this evening. I am going to try them at 100 yards tomorrow and according to the forecast it is supposed to be in the low 40's. I hope to achieve better results in the cold weather with the Varget over the RL15.
Best regards,
Bob