Wanted to do a review of the new adjustable bar, so here is 10 drops with #9 shot. The directions supplied with the bar our not the best, but ok. They give instructions to lock-tite some screws during assembly, but mine out of the box was already done. The lightest drop was .498 to .516. I put it on my mec 600 mark v as that’s what was on the bench. It’s 410 so 1/2 oz was the goal. The difference is 11 bb’s.