Suppose I order a high quality double in 500 NE and the maker regulates the barrels to hit at point of aim with one brand of bullets. I get the rifle, fire that brand of bullets in it and both barrels print exactly on target. So I book a trip and when I get there, the rifle arrives but no ammo & the local stores do not have the regulated brand in stock. What sort of variance will occur in the printing on the target of a different brand bullet of similar construction but possibly a few...
Variance in Double Rifle Regulation?
Variance in Double Rifle Regulation?