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Henry Mares Leg .45 SBR

21K views 39 replies 17 participants last post by  Jake762  
#1 ·
I know this isn’t everyone’s cup of tea but I recently picked up a used Henry Mares Leg in .45 Colt for the sole purpose of converting it to a SBR, or short barrel rifle for those that are not into NFA stuff. Unlike some of my other lever action projects, I am not planning to thread this one for a suppressor since loading would be problematic with the magazine tube.

By itself, the gun in its factory configuration is at best a cool novelty, but is very awkward to shoot without an actual buttstock and is of limited practical use. Regardless, it should make a compact and hard-hitting package when complete and holds 6+1 rounds of ammo vs the 5+1 advertised on the Henry website. Furthermore this should be an easy conversion as it will only require adding a regular stock when the stamp comes back.

Overall the gun is in good shape but shows a few scratches and a nice ding on the edge of the muzzle. It was also pretty dirty and I probably spent an hour just cleaning the lead and copper fouling from the barrel. This is my third Henry but is my first centerfire model and I am impressed with the overall feel of the gun and smooth action. For fun here are a few preliminary photos of the gun as received:
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#2 ·
Prior to getting the gun I ordered Skinner peep sight in the black gold finish. Being a first generation gun, it was not factory drilled & tapped so I also ordered the 8-40 tap set with a dovetail blank and a new front sight. Installation was relatively straightforward and was done on the milling machine in under an hour.
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#3 ·
Moving my attention to the muzzle, I used a flat file to remove the damaged area then recrowned the barrel using 90˚ and 45˚ muzzle facing tools with a sulfur-based cutting oil. A little cold blue solution finished the job and the barrel now measures approx. 12.8” versus the factory 12.9”. I also removed the rear buckhorn sight and tapped in the dovetail blank. I still need to order some 8-40 plug screws to cover the scope holes on the barrel but as a final touch installed a factory saddle ring found on ebay.
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My favorite outdoor range is closed all month for turkey season so I haven't been able to give it a thorough workout but I was able to shoot it this morning to test for function. I will need to get some new fingerprint cards at the sheriff’s office tomorrow but plan to submit my Form 1 application this week. My last submission took about 7 months to come back so at this point it is just a waiting game.
 
#4 ·
While cleaning the shop I found a set of 2-piece Warne steel scope bases that were removed from a Marlin 1895 I bought last year. I was going to sell them but realized they fit the factory drilled & tapped holes on the Henry barrel exactly. I have an American Defense quick mount for my Burris Fastfire III so had to mill the slot slightly wider but a little touch up blue and viola. Now I can install or remove the optic in only seconds.
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#7 · (Edited)
Love it.

I have a Rossi Ranch Hand in 45 Colt. I consider it a great Jeep gun. I don't care for the factory sights so you just gave me the solution. I love Skinner sights so I will replace the stupid Rossi factory sights with Skinner sights.

Nice one!

Update: Skinner makes a peep sight just for the Rossi Ranch Hand. Order placed.

Again, thanks for sharing your beautiful work.
 
#11 ·
John, I need to stop viewing your threads, nothing personal mind you. I've never been fond of Henry's brass receivers nor Rossi levers but after viewing your two threads I'm warming up to them. Not to mention a bunch of equipment such as you have in order to perform some mods that are rattling around in my head. Of course, that means spending more bucks and my wife is going to ask me where the hell all these ideas came from, which, I admit it's all your fault.

Again, excellent work and I bet this is a hoot to shoot. Sure looks awesome!

Jack
 
#13 ·
With turkey season over I was finally able to get to the range this weekend for testing with some favorite cowboy loads. For fun I took my 24” JM Cowboy and a chronograph to see just how much velocity the 11.2” difference in barrel length actually makes.

Although this is not an apples-to-apples comparison, the shorter barrel does give up some velocity as expected. Regardless, the little gun is still potent enough for anything I would want to shoot, especially with either of the MP hollow point loads.

Unfortunately I found the gun shoots 6” high at 50 yards despite lowering the rear sight all the way so will have to swap the front sight after all. Groups were nothing to write home about but I am confident things will tighten up once I can add a buttstock and get a good cheek weld.

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#17 ·
Just a quick follow up but I finally replaced the front sight with the one I bought from Skinner. To say it was difficult would be an understatement but I was able to force it into submission with a large brass punch and a big hammer. I nearly broke a finger in the process but at least it shoots closer to point of aim now lol.

I will say the gun is easy to take apart and is similar enough to a Marlin that I didn't need instructions or a go-by. The only thing that threw me off was the magazine set screw on the receiver but that wasn't hard to figure out. Anyway once I dial in a load for the gun I'll file the new sight down if needed.
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On another note I found a used lever from a Big Boy Carbine in 357 magnum. This part is a direct fit and suits me more than the factory big loop, especially here in the deep south. Gloves? Don't need 'em.
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#21 ·
Well after a relatively short 3 month wait the stamp came back so I can finish the build. I wound up ordering a figured stock set from Henry which is intended for the carbine model. The forearm will need to be modified to fit my gun but I'm planning to strip and refinish the stocks anyway.

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#22 ·
This one has been on the back burner for a while but I finally stripped the forearm and spent a couple hours fitting it today. I was going to cut a new tenon for the barrel band but wound up cutting it from the receiver end because I liked the grain more. After masking I cut it a little long and sanded it to length then set up a bit on the router table to remove most of the waste. I still have a little fitting to do but plan to wrap this up over the weekend before I strip the buttstock.
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#24 ·
Well, that stock certainly has some nice figuring. Looking forward to seeing this build completed.


Jack
 
#26 ·
Looking good, John. What finish are you planning on?

Jack
 
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#28 ·
Good idea to experiment to eliminate any regrets. FWIW, I'm thinking satin tru-oil finish might be just the ticket for that stock.

Looking forward to seeing it all done.


Jack
 
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#30 ·
I have to admit...I'm not a Mares leg kinda guy... I find it rather hideous...so...when I saw you were making it a project gun....it peaked my interest as to what you were going to do with it. I love what I'm seeing. You do excellent work. Looking forward to seeing the finished SBR.

That stock is gorgeous.

redhawk
 
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