The big sucker like the new large stud magazines for wildcat / Maverick ASO, probably only for the guy shooting from a table.
Though i couldn't see why it shouldn't also use if you hunt from a blind or perch, but then again why should so much game / pests walz right past your hideout that you need a high cap magazine.
Price wise VS the stud one, i think these are much "better"
Stud do do a .177 version of the big ones, but i am not in a place where i will be able to pick one up at the moment.
ATM i very much like the Stud mag loaders, i can do a handful of those from home, cuz it is too damn cold for me to bother with loading magazine at the bench.
So i can easy get some test rounds off, and get a feel for how my Maverick feel today, and then work off that.
I do wish i had a indoor 50 year range, that would be so nice, but probably expensive on the pellet collection.