I have a couple of ten rounders which I use mainly, and hold my pre-bans in reserve "just in case"...and I am not a prepper, but ya never know
^^This
Agree that the magazine limitations in MA are absurd. I think we all agree on that topic. The OP wasn't focused on that question though.
I do not own 10rd PMags because I'm afraid to own larger capacity mags. It's not like I "caved in" from my fear of big brother and so I stuck with 10 rd PMags.
Honestly even if we had no magazine restrictions or pre-ban considerations, I would still own a half dozen of the 10 rd PMags.
Why? Many reasons.
1. Hunting
2. Super lightweight
3. Sighting in scope at the range (10 rds is perfect. If i can't do it in 10 rds I should just go home).
4. Fits in pocket
5. If teaching a new shooter 10 rds at a time is perfect. It also teaches them how to change mags and cycle the action manually. The worst thing to do is hand a new shooter a 30 rd magazine and let them shoot without any understanding of the gun's action. Changing mags is a good way to learn how a gun works.
6. Soft spring tension makes easier to load. My woman can't load past 15 or so rounds in a full size 30rd magazine...spring gets too tough for her. This issue may also apply to girly men but I doubt said men would admit.
7. Reliability (10 rd mags are about as reliable as one can get)
8. Nice magazine cover - can store loaded mags and not worry about shmootz getting into mag and interfering w feeding.
One other thing...I recently saw some 10-rd mag adapters. I know Mako Group makes one that holds 5 x10 rds magazines in some "starfish" arrangement. I can't decide if it looks cool or awful. Certainly looks interesting haha. To me if you're going to bother with this stuff then you might as well just get a preban 30 rd.