RB, I need to try something different as I just got back from the range and using the lower charge that Woodward said was used for regulation did nothing to improve groupings with either 130gr FFg or 130gr FFFg. My paper patches hadn't dried in time to load and still beat the rain front, so I haven't tried those yet. The four I rolled before leaving look nice. Excited to try them.

I know this may be silly, but I really want to get this rifle and the Dickson to regulate with black powder before trying nitro-for-black. But the past 48 hours sure has been frustrating. If this was a normal rifle, I'd just move the sites and live with the 3" spread between barrels. (The barrels themselves are pretty consistent so 2 shots from the right barrel are close to each other.) But there's no moving the front sight and the rear is currently staked in place.

What was the standard regulation distance for 500 BPE? I wonder if my rounds are high because I'm trying to do this at 30 yards.