S&W 610/ Velocity loss

[tazdevils610]

Anybody Crono factory 40 s&w ammo from there 610- 4 inch bbls.? Looking for a major power 40 load for ipsc. Thanks

Richard

[bberkley]

I have a 610, and once the time changes next week, I'll have daylight after work to go out and chrono some loads. I'll chrono loads that make Major out of my Glock 35 in the 610, as well as some loads I've worked up specifically for the 610 in 10mm and 40 S&W.

[bberkley]

I noticed about a 25-30fps drop off with my .40 180gr 953fps loads from my Glock 35 when fired out of the 610 with 4" barrel.

[tazdevils610]

Bberkley thanks for the Info.

Richard

[scotty]

My experience is similar to bberkely's.

My 610 will run about 40 fps slower than either my Para P16 or Glock 22/Bar-sto which typically run within 10 fps of each other with the same load.

The only factory ammo I have tried in the 610 is Federal 10mm 180 lead which runs about 1015 fps. Definitely major.

[rwmagnus]

FYI just chroned S&W610, 40cal, 4"bbl today. Measured (3) 6 round test groups. While not factory ammo it is a favorite reload. Hope it helps.

Load data:

4.0 gr TiteGroup

155 gr bullet

Avg 818fps = 125.4pf

Avg 821fps = 126.8pf

Avg 816fps = 127.1pf

Next tested same load data above with 165gr bullet. 6 rounds fired.

Avg 814fps = 134.5pf