I've shot around 5,000 of the zero 240gr JSPs - mostly in the new S&W M69s. Didn't realize I shot that many until I looked in the garage for some that I thought I had -- all gone form a order of 1,000 then 4,000.

Mostly used 23.5 - 24.0gr H110 w/CCI350s and 20.5gr A2400 with standard primers - all crimped in "can" using Fed, Starline and Top Brass cases - on my 8th loading and primer pockets are still tight, but starting to get some split case mouths where brass is worked the most from crimping.

At 68 deg F and 5 long paces from the muzzzle
20.5gr 2400 2.75" M69 ........ Did not Chrono
20.5gr 2400 4.25" M69 ........ 1,173 fps avg
20.5gr 2400 7.5" RSRH ........ 1,329 fps avg

23.5gr H110 2.75" M69 ........ 1,126 fps avg
23.5gr H110 4.25" M69 ........ 1,230 fps avg
23.5gr H110 7.5" RSRH ........ 1,413 fps avg