I was shooting Crosman 14.3 hollow points today in my LCS SK-19 tuned to 930 fps / 34 foot pounds at 25 meters (that is the length of the indoor range) off of the bench rest and was obtaining 1/2" or less groups. I ran out of air before I could drop the pressure a bit more. However, my Daystate X2 Regulated and Walther Reign unregulated do not shoot these well because they are too light.
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