686+ timing
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Hello,
As an owner of a new S&W 686+ 4" I have been watching this thread with some invested interest.
I own my .357 to shoot it, and shoot it some more, so could some of the more experienced shooters please describe what 1) The effects of when the problem happens (out of timing or forcing cone worn)? 2) What it takes to solve the problem, as I am guessing the whole gun does not need to be scrapped? Finally 3) Ballpark, how many rounds it takes to get to that point (5,000 or 50,000)?
Thank you for your help,
RFB
Sure no problem.
The 686 is a great gun IMO.
The first timing issue occured for me at about the 8500 round mark. That is shooting 125 grn bullets. These full power loads travel at 1450 fps from a 4" tube. The height of their pressure just so happens right at the forcing cone area.
History of the .357: When it was first developed it was made for the 158 grn bullet. S&W was first to capitalize on this new cartridge. It introduced a beefed up K-frame model (beefed up lock work from the .38 special guns with the same frame size). These were great with 38's for practice and .357s for business.
The 158 grn load was better at dropping bad guys than the 38s but still not that "magic bullet" that LE desired. So ammo makers (specifically Remington) developed the 125 grn round. This round has since redefined the term "stopping power" when it comes to 2 legged predators. It is interesting to note that Sanow and Marshall rate it as a 96% (Federl HI_shok 125 grn LHP) one shot stop with a torso hit. Some .40 cal rounds get close to this % with a torso hit. But, the interesting thing is when you look at real life shootings when a solid torso hit was not made (meaning the assailant was hit in the arm, leg, or "other" area). The .357 magnum still has a very high one shot stop ratio where no other round (even the 45) does not. It really is the closest thing to a "magic bullet" that they have come up with. Disclaimer: there is NO MAGIC BULLET! So, with these outstanding results LE agencies switched to this new 125 grn round and had MUCH success with it.
But a perceived need to change to train with the ammo one loads for SD purposes saw many LE agencies begin this practice of training with the same HOT ammo. This began to cause excessive wear on the K-frame Smiths. Causing forcing cone errosion, cylinder endshake, and timing problems.
Hence, S&W introduced the L frame 586 and 686. A beefed up .357 that could withstand 10,000 rounds of the hot stuff. And I'd say that this round count is actually pretty close in my experience. More like 12,000 rounds of hot 125 grn loadings before lock-up issues occur. The 686 plus (7 shot) will go out of timing a little faster.
But, do not fret! They can rebuild them. S&W will rebuild them and has a wonderful cust service dept. They are great!
Now remember 99% of all people who own a 357 will NOT shoot enough 125 grn loads to cause timing issues. And even the k-frames will eat up standard pressure 38s all day long.....or all decades long as many here have attested to this fact.
S&W build good guns.
But the Ruger is easier to work on. Will NOT go out of timing (that I have seen). The Ruger has an ejector rod that is NOT the 3rd locking point. Thus the gun design allows the ejector rod to sit lower in the frame. This gives more metal in the forcing cone area. (the height of the 125 grn loads pressure hits here). This also means the ejector rod does not unscrew loose during shooting hot loads causing a lock-up of the revolver. The GP100 is a superior design in my opinion. Its hey day was cut short by a change in its audiences perceived need for more "firepower". Whatever that is.
I could continue on but I am hogging the conversation.
S&W and Ruger make fine revolvers. I just prefer the GP100 as it suits my needs........to shoot alot of rounds.
God bless all you gun owners.
I mean no disrespect to your chosen gun.