Blowing the pattern?

[Stan Hillis]

Pattern closer than before to see what the pattern is doing. But, I agree that the velocity is too high.

I shoot many different vintage doubles and stay under 1200 with all loads. Around 1150 to 1165 is what most of my guns are regulated for. Go with a heavy-for-guage payload, like a 1 oz. in 20 gauge, and the lower velocity. That combination of low muzzle velocity and heavy payload seems to pattern and regulate best in my vintage doubles.

I have a 20 ga. Sterlingworth Fox Ejector that cross fires to the tune of 8" at 25 yards with 1250 fps, 7/8 oz. loads . . . . both barrels. However, with 1 oz. loads at 1150-1165 fps it puts the left and right barrel's patterns dead atop each other and dead on the POA. Loads just have to be matched to the individual S X S gun for the best performance.