I posted this late summer of 2015 here
http://smith-wessonforum.com/s-w-re...465-s-w-model-69-44-magnum.html#post138656409. I didn't bother to edit the post, so there is probably some info that GunnerMichael didn't ask for.
WIW, the M69 weighs 37 oz, and the M629 Mtn Gun weighs 39 oz, both with the same grips on my digital kitchen food scale. In additon, the gun is narrower, trigger reach is a bit shorter, and the bore to grip axis is lower. All of which makes it a different feeling revolver, both in the hand and under recoil. I wrote this when I first bought my M69:
"Early on, I took the M69, a 329, and a 629 Mtn Gun to the range one afternoon. Ammo was the aforementioned 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."
In a later article on the M69, Brian Pearce stated "Regarding recoil he said the smaller L-frame's lower bore axis "translates into decreased muzzle lift, less felt recoil and quicker follow up shots".
I've had M69s two since the first quarter of 2014. Bought the first in Jan
'14, and liked it so much bought another one in Mar (IIRC).
One gun has 4,500 rnds down the tube, the other right at 1,600. I've shot everything from 320gr LFNGCs at a chronoed 1,180 fps to 240gr SWCs at 750 fps and everything in between. Just guessing, but probably 60 percent were 240s at 870 fps, 30% mid level .44 mags (265 SWCGCs at 1,140 fps) and the rest full blown .44 Mags.
Updated round count as of 11-7-2016: 5,200 and 2,700
(Sent the "2,700" rnd cnt gun to S&W for action binding at approx. 2,200 rnds – they fixed the yoke – turnaround less than 2 weeks and zero cost to me)
Here's a brief recap of Brian`s article in Handloader Mag Dec 2014 (#293
Article addressed strength & durability w/long term use of .44 Mag level ammo – shot over 2,700 round while testing and discussed engineering features.
S&W Reengineered yoke to place enough supporting steel surrounding bbl threads to handle Magnum pressures and allow increased barrel shank diameter.
Due to location of bolt notches (chamber wall thickness at weakest point is .040" in 629 vs. .052 in M69) cylinder strength is more than adequate to handle .44 Mag pressures. Ball detent lockup is a plus and "aids chamber alignment and durability".
All endurance package features previously/currently incorporated in 29/629s have been included in M69.
Brian quotes S&W "the L=frame has a strong durable frame and barrel built for continuous Magnum useage". Further, S&W engineers subjected the M69 to endurance testing with full power .44 Mag ammo and passed with ease.
Per Brian "IT SHOULD BE EMPHASIZED, HOWEVER, THAT THESE GUNS ARE NOT DESIGNED FOR LOADS THAT EXCEED MAXIMUM SAAMI PRESSURE GUIDELINES FOR THE .44 MAGNUM, OR 36,000 PSI".
Regarding recoil he said the smaller L-frame's lower bore axis "translates into decreased muzzle lift, less felt recoil and quicker follow up shots".
Balance of article is basically discussion of load data specific to the M69 with some other observations.
Showed a table comparing velocities M69 vs M629 with various factory loads (210gr thru 300gr). Also included a couple of load data tables covering bullets from 180 – 300gr.
The ref issue of Handloader mag is probably worth buying as the above only briefly recaps some of the info covered and I probably missed something that would be of interest to others.
I am a big fan of the M69s, wish they were avail years ago.
Final thought, the S&W X Frame Hogue grips go a long towards making the M69 more comfortable to shoot.
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FWIW,
Paul