The following numbers came from my old green Chrony. When compared to other chronographs, this example is always about 10 fps fast. It needs to be recalibrated.
Velocity Results
Weihrauch HW40 JSB Exact (8.4 gr) - 400, 397, 400, 398, 397 RWS Hobby (7.0gr) - 418, 418, 419, 419, 419 Beeman Crow Mag (8.8gr) - 379, 372, 376, 372, 376 RWS Meister (8.2 gr) - 389, 392, 392, 389, 390 RWS Super-H-Pt (7.4 gr) - 403, 403, 403, 400, 401 Crosman Supermatch (7.9gr) - 401, 404, 403, 400, 399 JSB Match (7.3gr) - 422, 420, 419, 419, 422
Beeman P17 JSB Exact (8.4gr) - 399, 402, 403, 401, 400 RWS Hobby (7.0gr) - 425, 429, 422, 427, 428 Beeman Crow mag (8.8gr) - 386, 381, 395, 384, 388 RWS Meister (8.2gr) - 406, 409, 406, 408, 409 RWS Super-H-Pt (7.4gr) -404, 407, 404, 407, 406 Crosman Supermatch (7.9gr) - 410, 408, 410, 412, 411 JSB Match (7.3gr) - 422, 420, 419, 419, 422
One last test with JSB Exact P17 - 404, 402, 404, 401, 406 HW40 - 397, 397, 397, 396, 397
The JSB Exact and RWS SHP both seem to fit the pistols about the same. A very slight push was needed to seat these pellets flush. The shorter Crosman Supermatch were a sloppy fit in the P17 but fit well in the HW40. The Hobby, Meister and JSB Match were a loose fit in the P17.
My HW40 prefers a pellet that requires a very slight push to seat. Too much push will reduce velocity. A sloppy fit has never given me good/consistent accuracy in this pistol. The Crosman Premier and JSB Exact were top performers when I last tested the HW40. These pellets required the push to seat. A fast shooting, sloppy fitting, unaccurate pellet isn't what I want. If the P17 prefers the same "push to seat" pellet fit then the Exact and SHP might rise to the top for accuracy. We will see.
Cheers, Todd
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