Helppppp lol

R

Rifle Master

BANNED
Regular
BANNED
Rating - 92.3%
12   1   0
Location
Frozen north
I picked up a chiappa NSR in 44 mag

having the hardest time getting the muzzle thread protector off

have used heat to no avail.

anyone else get there's off and how did you do it
 
I had similar issue to get flash hider off a 7.62x39 Savage Axis Scout rifle - for "heat" I used plumber's propane torch. Got some liquid to seep out of those threads (from rear of that hider - dribbled over that front sight when left overnight). Then made an insert for that barrel for my barrel vice - could not hold it tight enough between wood blocks in a 4" bench vice - barrel would turn in the wood "half holes". Then slide 3/4" (19 mm) open end wrench onto the "flats" on that flash hider and tapped it with a 2 pound ball and peen hammer - that got it to start to turn and it came off.

An aside - that one had a recessed "target type" muzzle - that area up to the first "baffle" within the flash hider was packed solid with carbon - bullet hole through it - I used a steel dental pick to flick off chips of hard carbon from the muzzle, then Carb Cleaner to dissolve and wipe off the rest of that carbon residue. It was VERY HARD stuff - from that recessed muzzle forward - INSIDE the flash hider.

C60A0259-AD5C-4B01-9FF2-111A794CB1C0_1_201_a.jpg
 

Attachments

  • C60A0259-AD5C-4B01-9FF2-111A794CB1C0_1_201_a.jpg
    C60A0259-AD5C-4B01-9FF2-111A794CB1C0_1_201_a.jpg
    76 KB · Views: 706
Last edited:
Be careful with heat. If you’re using clamps or a wrench, choose one that’s roughly the same contour as the barrel, and use heavy leather padding. Maybe take a drill of approximately the same size as the muzzle and make a hole in a piece of hardwood. Then, use a bandsaw to split that block of wood in half. Use the halves to pad a machinists vise (maybe add leather too as a precaution). Clamp the muzzle and you should have lots of leverage to unthread. Again, use caution and go slow. That’s what I’d try anyway. You’re basically making a simple, padded barrel vise.

Good luck.
 
If you use leather AND some rosin (baseball type) inside the blocks you twist off the barrel before it lets go and you do not need the heat.
Or, use a bit of heat then the clamp with leather and rosin.
I can move a round sleeve or bushing part that has not moved in 80 years with the right size of wrench and not put a mark on the blue.
 
Rifle Master said:
I haven't found anything yet, but i just want it ready for when I do; any chance you know the thread pitch on them?
Click to expand...

Yea, it's super dumb. Its M13-1.5 Left-hand threads; there are adapters online, it seems, but I suspect they are ATF traps in the states. Im to sketched out to try and buy one.

EDIT: Which way are you turning it? That might be your issue since it s a left-handed thread, so you want to turn it clockwise to loosen it.
 
Last edited:
buji88 said:
Yea, it's super dumb. Its M13-1.5 Left-hand threads; there are adapters online, it seems, but I suspect they are ATF traps in the states. Im to sketched out to try and buy one.

EDIT: Which way are you turning it? That might be your issue since it s a left-handed thread, so you want to turn it clockwise to loosen it.
Click to expand...

Jesus,,, that is probably my issue will try again tomorrow thanks
 
buji88 said:
Yea, it's super dumb. Its M13-1.5 Left-hand threads; there are adapters online, it seems, but I suspect they are ATF traps in the states. Im to sketched out to try and buy one.

EDIT: Which way are you turning it? That might be your issue since it s a left-handed thread, so you want to turn it clockwise to loosen it.
Click to expand...
"Super dumb" barely begins to describe that!
I wonder what their reasoning was for doing something like that....
 
buji88 said:
Yea, it's super dumb. Its M13-1.5 Left-hand threads; there are adapters online, it seems, but I suspect they are ATF traps in the states. Im to sketched out to try and buy one.

EDIT: Which way are you turning it? That might be your issue since it s a left-handed thread, so you want to turn it clockwise to loosen it.
Click to expand...

Thanks man tried it that way and it came off, I just shook my head lol
 
A lot of older cars and trucks used left hand threads on the off side wheel studs or nuts, usually stamped with a L, but not always.
Some people have had a hell of a time undoing them, usually about 6 ft snip works to snap them off. them the swearing starts.
Rotating tools/ tooling will sometimes use LH threads, drill chuck lock bolts come to mind, out board lathe spindles.
 
marshall said:
A lot of older cars and trucks used left hand threads on the off side wheel studs or nuts, usually stamped with a L, but not always.
Some people have had a hell of a time undoing them, usually about 6 ft snip works to snap them off. them the swearing starts.
Rotating tools/ tooling will sometimes use LH threads, drill chuck lock bolts come to mind, out board lathe spindles.
Click to expand...

Damned Dodge older cars! Broke off a stud on the passenger side front wheel by standing on the tire wrench trying to break it loose. Then after it snapped of I noticed the "L" and my brain kicked in.
 
You must log in or register to reply here.
Back
Top Bottom