The Firing Line Forums

Go Back   The Firing Line Forums > The North Corral > Black Powder and Cowboy Action Shooting

Reply
 
Thread Tools
Old August 20, 2002, 07:41 AM   #1
donb
Junior Member
 
Join Date: August 20, 2002
Posts: 3
I'm looking for info on Trapdoor repro.

Hi!
Can anyone provide any info on the Harrington & Richardson Arms Springfield Trapdoor Officers model?
Thamnks
donb is offline  
Old August 20, 2002, 10:43 AM   #2
Cap n ball
Senior Member
 
Join Date: October 17, 2000
Posts: 247
I understand it's a pretty fine repro with the ability to fire smokeless cartridges as well. The one I own is an original 1873. Great rifle with a good punch. Sorta like a 306 on steroids. You may find some info or links at http://www.trapdoors.com/
Cap n ball is offline  
Old August 20, 2002, 09:41 PM   #3
Nodakmarine
Senior Member
 
Join Date: January 29, 2001
Posts: 173
The H&R rifles are built on the 1884 design (low arch block, wider receiver, etc.) and tend to probably be the strongest Trapdoor out there when you consider the age or originals and questionable Italian steel (though so far my Pedersoli is just fine). What is a MAJOR problem with these rifles is the locking cam and can be dangerous if not corrected!
The problem is that the originals are a one-piece affair with the thumb piece on the shaft and locking cam with the bridle between the cam and thumbpiece that screws into the side of the block, holding it all together.
The H&R and Pedersoli rifles on the other hand don't use the bridle and the cam is seperate from the shaft and thumbpiece and is instead held on by a set screw. Now the difference between the H&R and Pedersoli repros is that the shaft where this set screw sits on the Pedersoli rifles is square where the H&R is round.
Now on the Pedersoli rifles, as long as the set screw is tight, it won't move on that shaft at all since the hole in the cam is square to fit over the square section of the shaft. On the H&R however with the shaft being round, the set screw doesn't have that good of a purchase on the shaft and if it loosens just a little bit, can lead to big problems. Problems like either not being able to open the breech at all (push on the thumbpiece and it and the shaft just spin under the cam) or worse, with the tang of the thumbpiece no longer held securely under the hammer, the block can fly open under full pressure and spit the empty case back at the shooter! Yes, it does happen, I've seen it a few times both when it locked up the rifle and when it blew empty cases out.
But now for the good news. It's an easy fix. There's three methods you can use to cure this problem.
First is to remove the cam and slide the shaft out, file a flat spot on the shaft where the set screw sits and put it back together. The flat spot gives the screw a better area on the shaft to set against and won't allow the shaft to spin under the cam.
The second method is to remove the shaft and cam again then drill a small hole where the set screw sits so again, you have a better surface.
The third method is not one I recommend by itself but is an option if you want to keep the H&R absolutely original and that is to simply loc-tite the set scew into the cam. Yeah, keeps it from backing out but doesn't make for a better area.
Personally, I like method one and as either of the first two methods, use a bit of loc-tite on the screw too. Now you will have a flat surface so the cam can't spin on the shaft and the loc-tite will prevent the scew from backing out during use as well. See, it's an easy fix and you get the strongest trapdoor out there to boot.
__________________
Stand by to stand by! We definitely have a maybe!!
Nodakmarine is offline  
Old August 24, 2002, 11:19 AM   #4
donb
Junior Member
 
Join Date: August 20, 2002
Posts: 3
Thanks for the great info! ntxt

ntxt
donb is offline  
Old September 2, 2002, 09:27 PM   #5
TBAUS
Senior Member
 
Join Date: August 15, 2002
Location: Central Texas
Posts: 111
donb, what specifically do you want to know about the H&R trap door Officers model. I own one. BTW Nodakmarine thanks for the write up about the locking cam! I will have to disassemble mine and file a flat spot. I sure don't want to eat brass or sport any sticking out of my forehead.

Last edited by TBAUS; September 3, 2002 at 09:54 PM.
TBAUS is offline  
Old September 6, 2002, 06:51 PM   #6
donb
Junior Member
 
Join Date: August 20, 2002
Posts: 3
Sorry it's taken so long to respond!
I was just looking for whatever info. I could find.
I picked one up withuot knowing anything about it for some reason?
Never did that before, I was just drawn to it.
Do you know where I could get a manual or wharever for it?
Thanks
donb is offline  
Old September 6, 2002, 09:20 PM   #7
Nodakmarine
Senior Member
 
Join Date: January 29, 2001
Posts: 173
Not really sure where you can find a manual for the H&R trapdoor rifles but if you check with folks like Dixie Gun works you can find collectors books and some of the old ordinance manuals for the original trapdoor rifles and carbines. Not really that much difference other than the cam being secured differently, the rear sights being different on some models and a few other minor details.
__________________
Stand by to stand by! We definitely have a maybe!!
Nodakmarine is offline  
Old September 6, 2002, 11:29 PM   #8
TBAUS
Senior Member
 
Join Date: August 15, 2002
Location: Central Texas
Posts: 111
I'd be hard pressed to find whatever paperwork came with mine. I honestly don't remember what came with it. I just recommended "Loading Cartridges For The Original .45-70 Springfield Rifle and Carbine" by J.S. and Pat Wolf, to someone on the reloading forum. This book has a lot of info about the trap-door, about care, cleaning, loading , history, etc., including pages out of the original trap-door Springfield manual. It is a good read and will give you a lot to think about. I hope this helps.
TBAUS 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 -5. The time now is 06:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.07167 seconds with 7 queries