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Old 07-17-2018, 10:11 AM
fortyshooter fortyshooter is offline
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Quote:
Originally Posted by Paul105 View Post
Picked up my second 2.75" M69 a couple of days ago. Visual inspection -- no apparent anomalies. Went to range and shot some factory and handloads. All .44 Mag -- POI was a bit more left with rear centered than should have been. Over the next several days, shot a bunch more .44 mag ammo -- both Factory and Handloads. Cyl gap at least .010 (feeler gage go at .010). Plug gages .428 go, .429 no go -- didn't slug bbl.

Chronoed loads (previously w/2.75" M69) -- Temp diff, but some faster, some slower -- none more than 40 fps diff.

Couple of groups from new 2.75" -- (yeah, rear not centered, but won't be sending back)

265gr SWGC (Thompson 429244), 17.5gr A2400 (Deep seated - over front drive band), chrono right at 1,100 fps at 80 deg f and 5 long paces fr muzzle. 25 yds rested on carpet squares.

Notice a lot of side blast with the .010 gap? Don't know why they can't keep it in the .004-.008 range.
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