Just used it to load a couple of my new Stribog sp9a3 mags (gen2 with the metal upper section/feed lips) a LOT easier than by hand. The other pistol magazine loads I have won't work with these due to the ridge at the back. But this loader DOES work. Bonus is I'll be able to load my AR15/AR10 mags with it too. 308 Winchester/7.62x51 is tight in it. will have to see how it works in reality. 45ACP doesn't seem to want to go into it as easily. :( It should since I know 308 Winchester and 45ACP use the same size shell plate/shell holder for reloading.
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3 of 3 people found the following review helpful:
.223 5.56
October 27, 2021
Reviewer:
Karl from NV
Works perfect, just wish it was longer to load more rounds at once.
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4 of 4 people found the following review helpful:
Works for Me
September 4, 2021
Reviewer:
Phillip from VA
Had to search a little to find ammo boxes that held my 5.56 and .300 Blk nose-down well, but once I did, this loader is the best solution I've found to feeding mags more quickly and in far less space than tabletop speedloaders.
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3 of 3 people found the following review helpful:
Worked great!
June 18, 2021
Reviewer:
American from Oregon
My first attempt was with a 20rd box with an AR magazine. This isn't optimal (as the heads of the rounds aren't exposed to load them as easily and the magazine doesn't fit as snug). That being said, I appreciate the accommodating form factor for various rifle magazine thicknesses and it worked great otherwise! Certainly MUCH faster and easier than loading them manually. Great (sturdy) product!
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2 of 2 people found the following review helpful:
ETSCAM-RIFLE
May 17, 2021
Reviewer:
DD from Iowa
Worked excellent for my AR - loaded both .223 & 5.56. Loaded a lot of rounds quickly with no issues
Works for Stribog sp9a3 (gen2) mags 
Works for Me