"...thought about duplicating..." Hi. If you can't deal with whatever with 15 rounds a second one or another pistol isn't going to help. In any case, the techniques are the same with any hand gun. Breathing, sight picture and trigger control, but you need to adapt to a different handgun. Just like you do when going from an automatic transmission to a standard.
You'd have to find the ammo a second Glock will shoot well too. The chances of both of 'em shooting the same ammo the same way are slim.
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