Hi, I'm shooting a 22-243ai. I'm shooting 75g Amax/eldm. In formed brass with h4831sc im getting 3650 very accurately, I had them 50-75 fps faster but they shoot in the .2s at 3650 load. I don't know if you will see 3800 without destroying brass and with great accuracy. I say don't chase the numbers look for the accuracy. Even at my fire forming speeds of 3500-3550 it's a flat shooter. I had a 22-243 straight before this barrel shot same bullets 3450-3500 something great accuracy and flat. Every coyote I shot was dead right there. Had one that spun a couple times and went down. Well it was a gut shot he turned last second as I was breaking the shot. Still dropped him fairly fast, even though it wasn't the greatest impact.