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Discussion Starter #1
Anyone had any success with RE 7 and the 100 AB ?
I haven't had any luck with H 322 or AA 2200 with the 100 AB!
I know it's a little fast for the 100's , but my 18" arp tc loves re7
with the 90 grain. Sierra & tnt. So maybe it's worth a try before I give up on the
100 ab's.
 

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No, but I did try reloader 7 with 95ttsx and I got short stroking..I run RE7 with my 90tnt but aa2200 for anything heavier...could just be my combo though
 

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Did you try adjusting COAL in 0.020" increments before you decided those powders weren't accurate in you rifle with 100 ABs?
 

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Discussion Starter #5
Did you try adjusting COAL in 0.020" increments before you decided those powders weren't accurate in you rifle with 100 ABs?

Not extensively , but I did take the most accurate load at 2.295" , and tried it at 2.70".
I didn't see any improvement.
 

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I have had some excellent groups with Re7 and 90 HPs. I've been using H322 with 100 and 110 ABs. It had good accuracy with 110 AB but had to play with COAL with the 100 ABs. I've been using H322 because it is not very sensitive to temperature variation. Re7 is sensitive - losing 13 fps per 10F drop in temps. 1200R is worse than Re7 and I've stopped using 1200R in the 6.8mm. AA2200 loses about 9 fps per 10F drop. H322 has been consistent. Still in development and looking for repeatability this weekend.
 
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