No4 mk1*

[Peter Laidler]

Evmoor and obscure rifle has started what could be an interesting thread. Sorry to sound grumpy early on a rainy Saturday, but I hope that he isn't going to be one of those who takes on board the good answers, good info and worthy comments and then just leaves the thread, leaving the questions unanswered and us all just pondering........ and the thread goes flat! Seen it quite a few times lately!

Can we see the breech end under the wood and a close up of the muzzle? Thanks

[evmoor]

I have looked at the knox, the only mark I can find is on the right side of the barrel.
I am guessing that it has been rebarelled.
and here are some of the pics, Peter.
I have no intention of abandoning the thread. I work on some of these weapons still for cadets, and this forum has provided me with some useful insight.

[browningautorifle]

Canadian Arsenal marked...so it was rebarreled, but the whole muzzle break is there. They pulled off the original front sight and slid the Tokarev front on. That must have made grouping interesting at first. Lots of pitting so it was blued after the re-hash.

[Peter Laidler]

Amazing - and interesting too. A couple for you BAR. Obvious really but can I assume that the muzzle brake is screwed on and am I seeing things or do those flutes start square to the bore at the muzzle and gradually sweep back or is that camera angle? Anyone?

Do you shoot it? It'd be interesting to take some results. Anyone know of this modification.

[evmoor]

I have shot it a few times, seems to be resonably accurate, but I haven't taken it out and dialed it in to see what kind of groupings it gives. I tried to take a few more pics of the muzzle brake rear sight to clarify the cuts. sorry if they seem a bit fuzzy, not using a good camera.

[jmoore]

Obvious really but can I assume that the muzzle brake is screwed on and am I seeing things or do those flutes start square to the bore at the muzzle and gradually sweep back or is that camera angle?

but the whole muzzle break is there.

In actual fact the brake has been modified by removing the rear portion which has the gas block and bayonet lug. The slots are indeed angled. But the brake walls are pretty thin, so there's a screw on reducer at the front. I must say that for it's weight, the SVT40 is a VERY light recoiling rifle even when the action doesn't cycle. But it wasn't as soldier proof as the Mosin.

I would guess that this cobbleness could have possibly utilized the brake's existing threads which are located about midsection (before it was cut off at the back). But it may not be the case. In the US, I would guess not, as metric threading on most older gunsmith's lathes is very difficult to do well.

("Brake" -as in decellerating device, not "break"- as in "broken" )

[evmoor]

I am planning on taking it to the range in the next coupe days for a good grouping and zeroing parctice, I will post the results after.

[Capt Mil Coll]

Makes one wonder why they would cut the Muzzle brake off a now $1500.00 Tok and put it on a (now) $50.00 Enfield.
I just shake my head at the bubbas.

I have to admit it does look kind of cool.

[evmoor]

took it out to the range last night, found it fired a five round group just over 1.5 inches out of a tripod mounted shooting rest at 100 meters(109 yards for us old school types). but kick like a mule, I dont know if it is because of the shorter barrel and minimal wood, but she bucks hard.

[Peter Laidler]

In theory, if the 'brake' was acting like a muzzle brake, then it should have had a forwards drag that should overcome a portion of the recoiling forces. But this can only really be measured on calibration table.

We did some very interesting tests/trials and experiments with L1A1 muzzle brakes and gas settings. Alas, the recoil remained constant!