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Hot Topic (More than 10 Replies) Maynard Action Varient (Read 13807 times)
Dr.Maynard
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Re: Maynard Action Varient
Reply #15 - May 18th, 2015 at 4:58pm
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  Way to go, Otto

The breath of life has come again to one very fine Maynard arm.  Nice going and it shoots "right on"  I wish you were back East closer so that you could join us later this year for an "All Maynard" day of shooting with like minded Maynard descendants and aficionados. 

Could I ask for one favor of you?  Do you have a close up photo that shows the details of your repair/rebuild to the standing breech area?  If so, would you mind adding that photo to your gallery?  I also very much like your butt plate adaptation, which I am assuming is a brass casting.

Keep the Maynard spirit going and I hope you enjoy more time with the fruits of your labor and craftsmanship.
Regards, 
Dr. Maynard
  
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Deadeye Bly
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Re: Maynard Action Varient
Reply #16 - May 18th, 2015 at 8:55pm
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Otto, I saw a conversion this weekend that was done the same way as yours. It was in 1882 configuration with a 35 caliber barrel of undetermined chambering with a cartridge retractor but no cocking lever. The wedge to change from percussion to centerfire was done the same way as yours. It was not marked 1873 or 1882 and I still do not believe it was a factory conversion. 

Nice job finishing yours and I'm sure you enjoy shooting it. Keep up the good work. Be sure to show us the S/S one when it is done.
  
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calledflyer
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Re: Maynard Action Varient
Reply #17 - May 18th, 2015 at 9:55pm
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Can I hijack this to ask a question about Maynard rifles? What is a  cocking lever, that some have, while others do not? Does it cock the hammer like, say, a Winchester? With the break open/tip up style, is the firing pin is rebounding? Do they ever cause problems, since they sure look weak with that small standing breech? I've Never experienced one of these contraptions, so I'd sure like to know how they work a little better than I do. Since they come up a lot, and seem to be highly thought of, I figure maybe I'm not the only one here that may be curious.  OK, that's more than one query.Thanks, guys. Pat
  
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chipmaker
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Re: Maynard Action Varient
Reply #18 - May 19th, 2015 at 12:42am
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DM
I repaired the rear of the action by welding, which caused the front of the dovetail to pull up. I then cleaned the front up and welded the entire top of the action, so that the original conversion dovetail is completely hidden. The brass butt plate was part of the original conversion.
DB
This rifle is equipped with the 1873 patent hammer cocking lever and extractor, although of a slightly different design than used by Mass. Arms. The stainless Maynard is out being evaluated for engraving, so it will be awhile before it is shooting.
Pat
The Maynard firing pin isn't rebounding. The hammer must be placed in the half cock position after firing, which allows the firing pin to retract and the action to be opened. In the heat of the battle or the hunt, this could lead to difficulty opening the action. The patent of 1873 included a small lever that pushed the hammer back to half cock, when the main lever was pushed down. This allowed a small spring to push the firing pin back, freeing the action to open. The cocking lever is small, closely fitted and timed, and retained by a small screw. It is frequently missing or non functioning, in well used rifles. In the model 1873, with the large rimmed, easily extracted cases, it is frequently removed when it becomes nonfunctional and the rifle operated manually.
Frank de Hass states that the action is a strong one, despite its light weight and trim appearance. It was originally chambered for cartridges such as the 45-70. Most, if not all, of the cartridge rifles were converted from percussion rifles by milling the top of the breach and attaching a firing pin containing new top, by three rivets/screws. 
The Maynard is a fun gun to shoot and the 1873 version, invariably attracts attention on the firing line. In a susceptible patient, they are highly addicting.
Otto
  
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Dr.Maynard
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Re: Maynard Action Varient
Reply #19 - May 19th, 2015 at 6:17am
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Quote:
Can I hijack this to ask a question about Maynard rifles? What is a  cocking lever, that some have, while others do not? Pat


Hello Pat -- We are not trading on formalities here, so yes, please come on in.  We try to share the wealth and help each other, -  -  -  -  almost a "band of brothers" if you will.

I prefer to call the Maynard a "tilt-up" action rather than a break open, as others often call them.

Now to your question, there was a separate and distinct U.S. Patent granted for a "cocking device", which is more correctly known as a "half-cocking" device that was utilized on the Model 1873 central fire conversions.  The central fire (C.F.) carbines and rifles were actually "percussion style" actions/receivers (Mass Arms Co. referred to the action as the "breech piece").  The conversion, in simple terms, consisted of deleting the percussion nipple, and as a replacement thereof, a spring returned firing pin was installed with a corresponding flat nose hammer.

Now, to the half-cock device;  The replacement C.F. hammer had added, a half-cock notch in the tumbler which was needed as a safety measure in order to move the hammer off of, and back away from, the firing pin at the time of opening the title-up action for reloading.   Obviously, the shooter could just as well have accomplished the retraction of the hammer after firing using his/her thumb.  However, the new patent device (half-cock lever) was added nonetheless to do that very same thing.

The half-cock lever was activated when the barrel was tilted downward on its hinge pin, and by lifting the hammer allowed the sear tip (on the trigger) to engage in the half-cock notch in the hammer tumbler.  At this juncture, with the hammer at the half-cock position the spring loader firing pin automatically went to the retracted position, rendering the arm safe to reload with a live round.  The action is now ready to be closed without the danger of have the primer struck by a recalcitrant firing pin.

Please feel free to ask any question/s you may have.
Dr.Maynard
  
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Deadeye Bly
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Re: Maynard Action Varient
Reply #20 - May 19th, 2015 at 7:45am
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Chipmaker and Dr. Maynard have covered the cocking lever well to explain the function. It is an ingenious design considering the small space for it to fit and work in. As a result the parts are small and the timing is critical. Quite a few are found to be non-working in original guns that show a lot of use thus making it necessary to bring the hammer to the half-cock position manually.
  
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calledflyer
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Re: Maynard Action Varient
Reply #21 - May 19th, 2015 at 3:22pm
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Thank to all three of you for supplying that interesting tutorial on the Maynard rifles. I've long been aware of the history of these (since my Colt "conversion" days that included the history of all such things.) I just never knew the workings. I figured that there was little space in there to add anything, especially after a firing pin was placed in there. Still looks pretty skimpy to me for anything very powerful. But, what do I know, right? Thanks again, guys. Pat
  
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chipmaker
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Re: Maynard Action Varient
Reply #22 - May 19th, 2015 at 7:58pm
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CF
Just a slight correction to DM's description of the activation of the half cock lever. It is activated by an extension on the main lever and not by the barrel, as it rotates open. As the main lever is pushed down, an extension on the lever, pushes the forward portion of the half cock lever down, which rotates the breach end up. This pushes the hammer back to the half cock position. At that point the firing pin retracts and the barrel can break open. An ingenious mechanism but one that is difficult to fit and time satisfactorily. 
DB
Did you by any chance get to see the water table area of the Maynard that had a cartridge conversion similar to the one described here? Mine has the number 38 stamped in that area and I wonder if it might be an indication of the number converted by the mystery contractor.
Otto
  
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Deadeye Bly
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Re: Maynard Action Varient
Reply #23 - May 20th, 2015 at 8:07am
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Otto, I did not notice any numbers stamped on the Maynard, just the dovetail farther back than the factory conversion and set in at an angle. That's what I noticed about the action.

The chambering could possibly have been the 35/55 cartridge. It was definitely an 1882 35 caliber barrel with a groove diameter of .360". The rear of the chamber measured .455. We could not measure the chamber depth well as there was not a definite step at the end of the chamber. A chamber cast is in order and the owner said he'll do one and let me know the results.
  
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