1911Forum - View Single Post - Ruger 9mm Commander and steel case ammo
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Old 12-22-2019, 11:16 AM
jjfitch jjfitch is offline
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Join Date: Apr 2007
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There is a specific "dance" between the mechanical parts and springs during the cycling. Steel ammo behaves differently than "brass". Changing springs may solve the problem with the steel cases but might create a problem with "brass".

Google: "slow motion video of the 1911 slide cycling"

You will see a slight dwell at the beginning and in full recoil. This is dependant on brass cases. Steel doesn't expand like brass!

Smiles,
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