the 3.5" 12ga maxes out when the 10ga is just starting to breathe
anyone who has ever claimed that their 3.5" 12 gauge will outshoot a 10 ga has either 1. never shot a 10ga or 2. never shot a premium 10ga turkey shell
2 or 3 years ago before the hevi 13 mag blends and 7's came out, 10ga's were putting up 300's with nitros all day long and if you had a 12 ga that broke the 200 club it was something to brag about