With my Hämmerli 850 AirMagnum XT 7.5 joules the ducks fall immediately to from 15 meters, the erection of the duck turns out more difficult, because the holding magnets are too strong and in the rotation to solve additionally rub on metal. With my pistol Beretta Mod 92 FS 3.5 Joules and with my S & W .586 revolver, the ducks do not tip at 10 meters to very poor.
My solution: I have back to the ducks div layers attached tape around the counterweight balance, so that the rotation is easier the second advantage, pulling the magnets / now rub also not so hard on the steel and thus solve this better when. shot at the middle.
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Meanwhile, the case has been intercepted far over 2000 surplus and still works perfectly. Have only times brought me a spray matte black, as more and more came through the sheet.