Quantcast
A technical question on TRR8 - THR
THR  

Go Back   THR > Tools and Technologies > Handguns: Revolvers

Welcome to THR
You are currently viewing our site as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have, access to post topics, communicate privately with other members (PM), respond to polls, and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!


If you have any problems with the registration process or your account login, please visit the help section.

Reply
 
Thread Tools
Old July 12, 2014, 02:42 PM   #1
omcf
Member
 
 
Join Date: July 28, 2006
Location: Northern Occupied Cuba
Posts: 77
A technical question on TRR8

Hello all-

I have been a fan of Smith and Wesson revolvers for a while, my 1st being their 340 J-frame. Recently I got one of their performance center TRR8's, an N-frame 357.

While examining the gun when I finally got it home, I noticed a small ball bearing in the front of the arm just below the ejector rod.

I appreciate this is not the same thing as the legendary triple lock of old, but can someone explain the difference? Does this ball détente (?) on the TRR8 actually do anything? And, technically speaking, how is it different from the triple lock on the "44 Hand Ejector 1st Model- New Century"?

Thanks in advance!
Attached Images
File Type: jpg TRR8 ball detent.jpg (79.0 KB, 27 views)
File Type: jpg TRR8 ball detent2.jpg (90.1 KB, 24 views)
__________________
There is nothing quite so exhilirating as having been shot at and missed-Winston Churchill
omcf is offline  
Old July 12, 2014, 10:57 PM   #2
Jim K
Member
 
 
Join Date: December 31, 2002
Posts: 14,962
That ball bearing serves the same purpose as the old lock at the front of the ejector rod. It serves to keep the crane in the closed position while firing, thus keeping the cylinder lined up with the barrel.

I admit to having some qualms about the idea but it seems to work OK and do the job at less cost and complexity than the front lock.

The old Triple Lock has three locking places - the front of the ejector rod, the crane, and the rear of the cylinder. It seems that around 1907, S&W overestimated the forces that would be acting on the new .44 revolver and decided that a crane lock was needed. It wasn't, but it was expensive. So it was dropped and never brought back. (Yes, I know about the reports of problems in British use in WWI due to the complexity of the third lock, but I have little doubt the thing would have been dropped anyway; it was just too complicated and expensive, and mainly not needed.)

So the new ball bearing system replaces two of the three locks of the "triple lock".

Jim
Jim K is offline  
Old July 13, 2014, 07:57 AM   #3
Sam1911
Moderator
 
 
Join Date: October 22, 2007
Location: Central PA
Posts: 27,341
Quote:
Does this ball détente (?)...
On the spelling -- if you're adding the accent on the first "e" and ending it with a third "e" then you pronounce it "day-taunt" with the emphasis on the second syllable and it means, "an easing of hostilities between warring nations."

"Detent" (prounounced "dee-tent" with emphasis on "dee") means a catch or simple latch mechanism that holds moving parts aligned a certain way until you want them to move again.
__________________
-- Sam

"...with liberty and justice for all." (Must be 18. Void where prohibited. Some restrictions may apply. Not available in all states.)
-D. Stanhope

Sights Practical Shooters -- IDPA

My Knife Showroom
Sam1911 is offline  
Old July 13, 2014, 02:17 PM   #4
omcf
Member
 
 
Join Date: July 28, 2006
Location: Northern Occupied Cuba
Posts: 77
Jim-

So if this gun had one more detent on the end of the ejector rod (like my 340) it would be a modern version of a triple lock? Interesting...

I was not sure if the ball bearing detent was anywhere near as good as the one 100 years ago, thanks for confirming.

And Sam, the computer must have auto corrected for the political meaning.
__________________
There is nothing quite so exhilirating as having been shot at and missed-Winston Churchill
omcf is offline  
Old July 13, 2014, 02:48 PM   #5
Raddogz
Member
 
 
Join Date: July 13, 2014
Posts: 1
On another note I would love to hear a range review on this gun. This is gun is on my immediate wishlist
Raddogz is offline  
Old July 13, 2014, 04:09 PM   #6
omcf
Member
 
 
Join Date: July 28, 2006
Location: Northern Occupied Cuba
Posts: 77
Range review you say? And now the bad part....

I have lusted after this revolver for 3 years or so. Finally found one at a price that was less than most wanted for it. Snapped it up, got it home, applied EEZ Ox, then took it to ranger next day. Shot 50 wadcutter match 38 spl, 25 rds of Hornady 125gr 357, 45 rds of Winchester 125gr pdx1.

Loved the moon clips, loved the 8 rd capacity, loved the fact I could mount a light/laser combo up front. Kick on anything I shot was almost nil (at least compared to the 340). I still want to try some grizzly loads from Buffalo bore to see how bad they are.

Accuracy was decent, but did not transform me into Jerry Miculek. I guess that old saw about a poor workman blames his tools applies here. No, to be fair, it was quite good, but I was distracted by another issue: no less than 12 rounds in the 80 or so I pulled the trigger on failed to fire. Even after re-cycling them, 4 did not fire at all. Upon examination, the firing pin is only coming out about 40% of what it should be. This is a brand new gun.

So now I am wrestling with S&W customer service; wish me luck! A more comprehensive range session is in order once I send it back to get fixed, but I have to tell ya: this thing does feel great in the hand! Hope they can fix it.
__________________
There is nothing quite so exhilirating as having been shot at and missed-Winston Churchill
omcf is offline  
Old July 13, 2014, 10:54 PM   #7
MartinS
Member
 
 
Join Date: October 15, 2004
Posts: 583
You must be in that particular agony of consummation deferred, a bleak and empty landscape. But take heart, a shorty firing pin should be an easy, quick fix and then
the trumpets shall sound and we will get our range report.
MartinS is offline  
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:19 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
vBulletin Optimisation by vB Optimise.
This site, its contents, Shooting Reviews, and its contents are Copyright (c) 2010-2013 Firearms Forum, Inc.
IMPORTANT DISCLAIMER
Although The High Road has attempted to provide accurate information on the forum, The High Road assumes no responsibility for the accuracy of the information. All information is provided "as is" with all faults without warranty of any kind, either express or implied. Neither The High Road nor any of its directors, members, managers, employees, agents, vendors, or suppliers will be liable for any direct, indirect, general, bodily injury, compensatory, special, punitive, consequential, or incidental damages including, without limitation, lost profits or revenues, costs of replacement goods, loss or damage to data arising out of the use or inability to use this forum or any services associated with this forum, or damages from the use of or reliance on the information present on this forum, even if you have been advised of the possibility of such damages.