Greetings
Well....Just turn the target sideways. .
A good friend of mine who only shoots a Sharps ( not the new ones) made that statement to me one day down at the old Danville rifle range on the river bottoms. We had 500 yards down there and he was trying to help me get my old 1873 Trapdoor (groove .464) to shoot his 40-1 500 grain .458 boolits with 2F Goex. Some time after wasting near 35 rounds of keyholers (the few that made it to the 200 yard target) Danny made the statement. Well we did a throat pound" with one of his bullets and found the problem. Left as cast at .461 from his "Sharps" mold it did much better. But it took .462 + diameter to finally get that rifle to print at groups 500 yards. That was 35 years ago this summer up there.
Mike in Peru