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Depending on the gun half inch to an inch. Scope cuts that by half the size and less depends on what gun some PCPs and Vintage 10 meter spring guns can drill the same hole at 25 yards.
Columbo have Sonny shoot 4U from now on.
I shot an exceptional 40 yard group 90 minutes ago. Absolutely still conditions, the sun was filtered by all the smoke from western US fires creating perfect light conditions, too. I fired up my grill and put the meal on auto pilot while shooting 50 straight shots on fresh white paint. All shots hit steel, no misses. HW80...22...using the outstanding factory Weihrauch open sights. H&N 14.66 FTT pellets. Dare I say.....standing offhand? I may never put a scope back on that 80. Tin # 22 is gone.
The salmon was delicious.
I shot an exceptional 40 yard group 90 minutes ago. Absolutely still conditions, the sun was filtered by all the smoke from western US fires creating perfect light conditions, too. I fired up my grill and put the meal on auto pilot while shooting 50 straight shots on fresh white paint. All shots hit steel, no misses. HW80...22...using the outstanding factory Weihrauch open sights. H&N 14.66 FTT pellets. Dare I say.....standing offhand? I may never put a scope back on that 80. Tin # 22 is gone.
The salmon was delicious.
I did a post on this a while back for a contest that never happened. Below is the best group at 42 yards five shots. With open sights. Actually 10 m peep sights. Still open.
The post shows more average groups. I tried to capture the essence of how I got to the magic group.
https://www.airgunnation.com/topic/you-absolutely-need-high-magnification-and-high-velocity-to-shoot-small-groups/