I wondered if the SARCO spring may be too "heavy" since it's new manufacture. I'll try thinning it a bit when I polish the HO.
I was shooting all kinds of ammo in it - both reloads of various bullet weight and some Russian factory 115gr FMJ. I chronographed the reloads in my CZ 85 to make sure I had velocities comparable with factory loads of the same bullet weight. I don't "hot-load" although I have read in several sources that Lugers like stiff loads.
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