Fist range trip with the used 686: Disappointing.

Smaug

New member
I bought one of the used S&W 686s from centerfiresystems.com. I had high hopes for it when I took delivery of it.

Although it is nickel-plated instead of brushed stainless, the price was simply too good for me to resist. ($289) It is a 4" barreled model.

The cylinder is hard to get out; like it is hanging up a bit on the piece at the end of the underlug. I discovered that if I push backwards slightly when I'm opening it, that is overlookable. (is that a word? Hehehe)

But the real disappointment came when I shot it.

I loaded up 4 boxes of ammo, all in 357 cases with 158 gr. hardcast lead bullets:

1. Light 38 Special loads - 3.8 gr. of Bullseye
2. 38 +P+ or light Magnums loads with 5.8 gr. of Bullseye
3. Light magnums with 11.2 gr. of 2400
4. Full magnums with 15.0 gr. of 2400

Load 1 was fantastic. I was immediately more accurate than I am with my Glock 34 or Ruger P90.

Load 2 was not quite as good, but still quite acceptable. Probably on par with my Glock 34 or Ruger P90. (But not in the same ballpark as my 8 3/8" S&W 29)

Loads 3 and 4 were awful. They went to shotgun patterns. I really don't think it was flinching. Even from a rest, it was hard to keep them on paper at 25 yds.

Is this common? I figured they may not be quite as accurate as the 38 Special loads, but they were just horrible. Could it be that the heavy bullets with the magnum powder charge is not a good combo? My Smith & Wesson 29 shoots nearly as well with the full-house magnums as it does with light Specials.

I'm interested in everyone's comments.
 
Try a gas check design w/the cast or try using jacketed bullets.
Or try a different source for the cast lead.

FWIW, I've had similar experience using cast lead .357/.358 slugs compared to the .429/.430 .44mag.
 
Hard to open is the ejector rod being loose. It is left hand threads. Take a piece of leather and some pliers and tighten it.

If the bullets you tried fit the gun poorly accuracy will really go to pot when you push the speeds, same thing if they are overly soft. Try some different bullets, you can have FULL load magnums that shoot very well with lead bullets if you find the right components.
 
I would also point to your bullets as the culprits since they shoot so well at low velocities. I would try a harder alloy or check the dimensions of everything. Also you should examine the the lube to see if it's holding up.

BTW...are you sure the M686 is just not a polished SS. If it was nickeled then it would have been a carbon steel M586.
 
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