Ever see anything like this ?

[skneub]

Why would someone do this ?
How do you think it will affect accuracy ?

 

[Magellann]

It probably will have an effect, it depends on how it is crowned in the bore. Its hard to tell from the pic. What was meant to be threaded into the barrel?

 

[skneub]

It probably will have an effect, it depends on how it is crowned in the bore. Its hard to tell from the pic. What was meant to be threaded into the barrel?

I have no idea what was intended to go there, it seems similar to counter bored .
But the first bit has been tapped...

 

[canucklehead]

It's probably threaded for a BFA?

 

[skneub]

It's probably threaded for a BFA?

What is that ?

 

[Magellann]

I have no idea either.

 

[silverfoxdj]

 

[anglia2]

Maybe it's an ultra fast gain twist barrel lol

 

[kage123]

What is that ?

Blank firing adaptor

 

[skneub]

Blank firing adaptor

ahh...bolt action wouldn't need one...

 

[Komodo]

Movie props or reenactors thread the barrels internally to accept a Blank Firing Attachment (BFA) so the semi auto works while firing blanks and it does not affect the outward appearance of the rifle by using an external BFA. A bolt action rifle would not require a BFA

 

[recce]

Movie props or reenactors thread the barrels internally to accept a Blank Firing Attachment (BFA) so the semi auto works while firing blanks and it does not affect the outward appearance of the rifle by using an external BFA. A bolt action rifle would not require a BFA

It wouldn't require one, but maybe it was done for safety?

 

[fraserdw]

Why would someone do this ?
How do you think it will affect accuracy ?

What make of rifle? Also movie props use a threaded gas limiter on bolt guns for safety.

 

[skneub]

What make of rifle? Also movie props use a threaded gas limiter on bolt guns for safety.

Perhaps I guess , whoever did it has less talent than my boot.

It is a type 99 Arisaka 7.7x58 jap

 

[rci2950]

I have seen movie guns done like that and a plug in the end so they cycle with blanks.


Edit: woops I see this was allready mentioned.

 

[9x19p]

...

already mentioned

 

[camster]

I have a couple swedes here (bolt and semi) that are threaded externally to accept a BFA. I just looked closely at my BFA and it seems to have been made for a rifle with internal threading...

As suggested, being tapped shouldn't affect accuracy s'long as the actual crown (which would be deeply set on your rifle) is in good shape.

 

[donor]

To me effect would be like counterboring-none,however it would be real PITA to clean all those threads after shooting.Interesting still,never seen anything like that.

 

[jakester]

Some BFA's are internal thread such as the units used on the AG42B Ljungman. Some bolt actions such as the previously mentioned Swede Mauser's, used them because the swede issued 6.5x55 blank used a wooden projectile. The BFA was engineered in such a way to shred the wooden projectile when fired. Not every country used a blank cartridge case with a crimped over case mouth.

 

[skneub]

Some BFA's are internal thread such as the units used on the AG42B Ljungman. Some bolt actions such as the previously mentioned Swede Mauser's, used them because the swede issued 6.5x55 blank used a wooden projectile. The BFA was engineered in such a way to shred the wooden projectile when fired. Not every country used a blank cartridge case with a crimped over case mouth.

I somehow doubt this one was manufactured like this though..It was wartime production.
one of 10000 .

I believe I have one of them wooden tipped rounds though