Not exactly what you're asking about, but offered as a data point.
Yesterday at 30 yards, 1 shot and dead as a stick.
1377 with mods (steel breach, better sights, longer tube, etc) . The heavier domed pellets made a very big difference in one-shot kills when compared to lighter Crosman pointed or domed pellets.
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Last edited by longarm; 11/24/22. Reason: Typo