Originally Posted By: Shotgunjones
Hope your FAIRs shoot better than this one:

https://www.americanrifleman.org/articles/2019/7/30/tested-fair-iside-shotgun/

At 40 yards, that left barrel would be almost a full pattern off in POI at 10 o'clock.



That one is cross firing. Mine (.410) did, too, when first tested with 1/2 oz. loads. At a suggestion, from you if I'm not mistaken, I tried the WW 3/4 oz. factory loads. They regulated it perfectly. That suited me to a "T" because it is a hunting gun and I wanted to use the maximum loads in it, it being a .410.

I'll betcha' a heavier, slower load would do the same in the test gun in that article. Slower loads allows the payload to remain in the barrel a tiny bit longer, and the heavier load creates a bit more recoil, both of which helps in bringing the pattern back towards POA, when it is crossfiring.

SRH

May God bless America and those who defend her.