Glad to see someone else with a favorable opinion of the M69.
As most of you who follow the M69 threads, I have two - one with 800 rounds and one with 1,400. I've shot 325s at 1,180 fps and 240gr at 700 fps. Have settled on two loads 6.5gr HP38 under a 240gr Laser Cast SWC seated and crimped over the front drive band in .44 Mag cases. Haven't chronoed these, but should be about 850 fps.
The other is 265gr SWCGC (429244 Thompson GC) over 17.0gr of A2400 also crimped over the front drive band (basically .44 special OAL) - these chrono 1,140 fps (both loads at 5 long paces from the muzzle at 60 deg F).
I put the Hogue 500s on mine and have been carrying the m69 in an older Simply Rugged Sourdough Panake off and on while walking the dogs.
6.5gr HP38/240 SWC - Top Target, lower right group.
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17.0gr 2400/265gr SWC - Bottom target, middle left group.
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Haven't had any problems and am real happy with mine.
FWIW,
Paul