One oz loads in a 20g boot more on the shoulder generally than same one oz loads in 12ga as 20ga isgenerally a lighter gun.
Heavy 20ga loads are not pleasant in my light u/o.
It seems most buy a 20 for their younguns to learn on and then give them heavy loads to shoot. The gun nearly boots them into next week. Hardly fair.
While a semi is better usually in terms of recoil the above is still applicable to some extent.
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