I have close to 1,100 round thru 2 M69s. Everything from 240s at 750 fps to 325s at 1,180 fps (actual chrono numbers). Most (approx. 75 %) have been .44 special level loads. My guns are equipped with the S&W Hogue 500 grips (all my round butt S&Ws are so equipped due to a problem with the bone at the base of my thumb).
Questions that always seem to come up.
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Weight with Hogue 500 grips:
629 Mtn Gun weighs 39 oz
M69 L Frame weighs 37 oz
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I took the 329, 629 Mtn Gun and the M69 to the range. Ammo was Federal Factory .44 Mag 240gr JHP (No. 44A). My perception was that recoil of the 329 is definitely snappier/faster, and the Mtn Gun has a bit more muzzle rise vs. the M69. Only thing I can think of is that the barrel is skinnier and the bore to grip relationship is higher on the 629 vs. the M69 (which rides lower in the hand and has a bit more weight forward). Could also just be my imagination. As should be expected, the Mtn Gun feels a bit bulky compared to the M69 – subtle, but noticeable to me.
Recoil is subjective, so your mileage may vary.
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Barrel shank/forcing cone measurements:
629 Mtn Gun Barrel Shank OD: .630“
M69 L Frame - Barrel Shank OD: .620“
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Pictures
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M69 Barrel Shank/Forcing Cone area:
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M696 Barrel Shank/Forcing Cone Area:
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I really like this gun.
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FWIW,
Paul