Thread: Suppressing a 45/70

Hey team. Possibly looking at a henry single shot in 45/70. Just wondering how short you can cut the barrel on them and what the go is with suppressing them.
Cheers

Originally Posted by mimms2

Anything *can* be done. The question is why??

They do chamber revolvers in 45/70. So you can go as short as your license/endorsement allows.

Supressing is normally done by threading the end of the barrel and screwing on a muzzle device.

Want to use for bush hunting for fun but very important to protect my ears for my pilot medical so I suppress all my rifles. Was just wondering from people’s experience how short you can chop a 45/70 and then suppress without it being a fuck up

Originally Posted by mimms2

Like I says, they do them in pistols, so as short as you fancy.

Save all that, take up reloading and go cast/subsonic loads... I think hornady even do a sub-x factory load.
Way cheaper than modifying a rifle.

Is there not a limit on how short you can cut a barrel on large calibers especially 45/70 and suppress with out ruining the suppressor or making it dodgy? Like I have a 19” 300wsm suppressed and a lot of people say don’t go below 18 cause it fucks the suppressor and lose to much performance. So guessing it the same with a 45/70?

Yeap will reload

If you have your eyes set on the henry that is fine. But just to let you know, there is a bergara single shot as well imported in the country that comes with the barrel already threaded. I would try to keep the barrel around the 18" mark,

It's not a binary thing like "17 inches is fine but 16 inches is instantly fucked". As the barrel gets progressively shorter, the intensity of the muzzle blast increases, so the quicker the baffles will get eaten away. You'd probably have to go stupid short to threaten the structural integrity of the suppressor and it'll vary by make - so best fire that question at whoever you go with, if you're gonna do that.

45/70 needs a big suppressor. It's a big exit hole with a lot of gas and so it needs a suppressor with a lot of forward volume to strip as much as possible to make any meaningful difference to noise.

for me...anything less than 18" and you wasting the round...... with longer barrel you WONT need to suppress unless you shooting stupid hot loads and lots of them. I dont even notice mine at 28" my ears dont ring at all...its fun to fire becuase of it.

nah old n grumpy...only partly deaf LOL
but seriously a longer barrel takes blast away from your ears,it is further away so everything is better,angle included..... love shooting the hefalump gum with black powder duplex loads......so much fun indeed.

Am going to suppress my 45/70 Henry at some stage. Gonna talk to Friwi about when I have the funds.

With suppressor on I’d want it to be no longer than it is with original barrel. Will be using factory loads.


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Yes high has volume so reasonably big suppressor will be best
But relatively low pressure from a 45-70 so it won't eat the baffles like a high pressure round in a short barrel

I cant see subs being tough on a suppressor.
The quietest sub rifles have vented barrels so instead of cutting the barrel really short and hanging a long suppressor off it, a stronger set up might be venting the barrel from inch 12 on so that the overall set up is shorter. Just an idea, someone here will know if its viable

Can it be done with a muzzle forward on the marlin guide guns?

Consider a .44mag singlehot as well . . With 300grn. XTP bullets you have a Big hitter & using .44 specials you have subsonic

Originally Posted by rossi.45

Consider a .44mag singlehot as well . . With 300grn. XTP bullets you have a Big hitter & using .44 specials you have subsonic

Hi rossi, I've got a 44 and tried the 300grn XTP. They are very accurate but the lead is too hard ( they are made for protection against Bears) and they perform poorly on game. The 300 grn Nosler HP is much better on game. Neither give performance even close to the photos you posted of what you got with the cast big metplat bullets in your 4570

Originally Posted by mimms2

Like I says, they do them in pistols, so as short as you fancy.

.

Not if you want to go hunting with it. Pistols and Pistol length rifles not legal for use off of certified Pistol ranges in NZ.

Originally Posted by 300_BLK

Can it be done with a muzzle forward on the marlin guide guns?

If you meant Something like that :
Can simply fitted at the end of a non ported barrel