So far I made it to 39.5 gr of ar2206h and was getting 2570fps. Out of a 16inch and would group about an inch at 100
What I noticed was the groping getting better the faster it went and had no signs yet so I will go 40 next and keep going until I see signs of pressure or bad groups
Main aim is to see 2600-2700 FPS max and I’ll be happy ish
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