G20 highpower loads

Discussion in 'General Firearms Forum' started by rexfire, Sep 30, 2020.

  1. Taterhead

    Taterhead

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    Thanks! Veral Smith of Lead Bullet Technologies was a pioneer in bullet design. Characterized by a big wide meplat "Wide Flat Nose" or "Long Flat Nose".

    There have been many clones of his designs ("LBT style"). He is getting up in age, but he still makes terrific molds.

    For a better idea of his designs (and for some tasty cast bullet porn), Montana Bullet Works sells many LBT bullets in a number of cartridges, including the bullet I cast.

    I'd order it in Hi-Tek coating sized .402 if to be used in a Glock.

    https://www.montanabulletworks.com/product/10mm-lbt-200gr-wfn-pb/
     
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  2. Taterhead

    Taterhead

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    Nice velocity pickup vs the 4.6"!
     

  3. Iceman cHucK

    Iceman cHucK

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    To shoot hot Underwood & DT loads reliably in my G20G3, I use a 19&20lb uncaptured recoil spring and 460Rowland mag springs. I tried 22 and 24lb captured springs but got best results with the 19lb uncaptured. Going too heavy on the recoil spring just aggravates the bolt over misfeeds as it reduces time for the mag stack to rise. The heavier mag springs did the trick but lost 2 rounds of capacity (13 vs 15). This is after YEARS of testing!
     
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  4. Planetcat

    Planetcat

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    I shoot underwood or buffalo bore hard cast in my Gen 3 g20 using a stormlake 5.3” extended 2 port barrel. It’s not super long and the ports help keep the muzzle flip down. I don’t plink with it all day, so the stock spring handles them fine for occasional use.