mliebs said:
...At what point does the barrel start getting too long? I normally only shoot skeet but will also shoot sporting clays once in awhile. I don't hunt at all.
Depends upon the person, the preference and the practacality.
Naturally, as noted, semi-auto receiver lengths vary, which leads to discussion points of little actual importance. Consider avoiding too much such analysis and consider more fit & try with scatterguns.
Have fun doing it and learning what works for you.
On it's face, for a diet primarily composed of Skeet....I would expect a 32" barrel on any action to be unneeded and might tend to bring a reality to the shooting that may not help sore shoulders. Balance and balance over a number of rounds will speak for itself...on which measure will work for you.
28" tho, can be easily found and will simply work a treat for all but the most narrow of scattergun niches.
I would consider that length as a starting point and give it, and any other length, some time to reach past the happy marriage we all experience with most new scatterguns, as focus normally tracks the initial excitement of something new.
My own preference in a SA would be 26" or 24" but I use skeet as hunting practice and hunting scattergun familiarization.
When I used to shoot for score....28" seemed to work well enough for guvmint work....SA or break-open.
Good luck and never miss the fun portion of the process.