I got this tool with a box of 20 stripper clips. It will stuff a full stripper clip into a high capacity magazine fairly easily and quickly, but you have to make sure you do your part right up to the last round or it will misload and you'll drop a round or two. This means exerting even and deliberate force through the whole stroke. If you are tentative at all in the downward thrust, it will misload, which makes sense and isn't something I would fault the product for. Otherwise, once I got the idea, it was easy to stuff three stripper clips full of ammo into a 30 round magazine without a hitch. I plan on packing stripper clips and this little tool in my LRP vest so I can carry more ammo for the weight. Should make carrying 200 rounds on clips easier than packing 6 extra 30 round magazines.
Pros: makes short work of stuffing high capacity mags from stripper clips
Cons: Will misload the last round or two if you aren't deliberate
This review was written in the old system and had content requirements that are different than reviews written today.