I don't have a lot of experience with the UMP as I do with many of the other full-auto's but I think it's a fun submachinegun to shoot and it turned out to be a fun video. I started off with a full magazine of .45acp Magtech Guardian Gold, defensive type ammo. The Guardian Gold is very "hot" ammo and gives as much recoil as any .45 load I've ever fired. Through the UMP, it not only increased felt recoil but increased the cycle rate about 200+ rounds per minute. This made the gun practically un-shootable, as least where any accuracy was concerned when holding the trigger down. The recoil was so violent than it completely blurred my vision to the point that I couldn't see the front sight post or target. The second magazine was half Guardian Gold, half Magtech ball ammo. The different between these two types in the UMP was extraordinary in that the ball ammo was much easier to control. I attribute this mainly to the decrease in the rate of fire from 800rpm to a manageable 600rpm, which happens to be the designed rate of fire. AKmick is doing the filming and "SP" is helping with the loading. Thanks to both of my buds!

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