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Arridondo speed chute on a CZ 712 and gas port size, better springs th


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Yes, I know....puts you in "open"... Doesn't matter to me..... ANYONE done this????

I have a small mill (named the "destroyer") and access to a heli-arc welder. I'm certain I could botch this up!!!!..........Ralph, I hope I spelled your name right????.... I've read the posts on opening the gas ports for puffer loads... A little confused on the exact size.. Is it .006 over the stock size or what? .Are the after market springs still available?

I measured the gas ports, .1085.... one had a slight burr I removed... was looking to use 1145/1180 FPS x 3 1/8 oz. x 71/2 shot.

Edited by mike NM
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