myself i feel there is quite a bit more in a 22 250. it can reach out way farther than the 223. My 223 has a 20 inch barrel and 22 250 is a 28 inch so there could be a bunch more just based on that.
With hand loads it works out to 2 cents per shot for the extra powder, with my own loads in both.
If you can't do it with a .223, chances are you won't do it with a .22-250 either, particularly if your .223 has a fast twist barrel which will stabilize longer bullets that are better in the wind. Usually factory .22-250s are mated to slow twist barrels. The fast light bullets from the .22-250 are explosive against live targets, but suffer badly in the wind as ranges extend beyond 300 yards.
With hand loads it works out to 2 cents per shot for the extra powder, with my own loads in both.
[emphasis mine].223 = cheap ammo, small boom, 300 yds max.
.22-250 = more expensive ammo, bigger boom, 500 yds max.
Have fun![]()