Russian superior gun engineering

[levigsp]

I see.

 

[Jagare]

The hole is central but the sides are out off line.

 

[Klenchblaize]

Simple: Index “11” at 6-O’clock in the action.

K

 

[long_range_rob]

The hole is the same size all the way down! What do you guys want, gravy on it?

 

[shakey jake]

What calibre is that?

 

[Ronin]

Who’s barrels are these ,,,,,,,can the machinist walk down an alley without bouncing off the walls

 

[cjm1066]

Any one got his contact details I need a barrel fluted

 

[Woodsmoke]

What calibre is that?

.308 and-a-bit, I'll wager . . . .

 

[Franchi Matt]

11 - 3 = 8?

 

[BlackWing]

Nyet komerad, rifle works fine.....

 

[tozzybum]

Bangsticksi popsoffski niet problemski

 

[Camelfarm]

What calibre is that?

Think that would be the 30mm canon from a BMP-2 (personnel carrier). that barrel will get very bendy after a few rounds with uneven heat distribution.

 

[User00040]

Looks like they learnt from Sassen!

 

[levigsp]

What calibre is that?

30mm

 

[levigsp]

Think that would be the 30mm canon from a BMP-2 (personnel carrier). that barrel will get very bendy after a few rounds with uneven heat distribution.

bang on the button, it was taken from the users and scrapped.

 

[sikamalc]

bang on the button, it was taken from the users and scrapped.

So one can assume you've cancelled your order for the hand made Russian rifle then

 

[Taff]

I have seen similar in bergara ,tikka, and ruger if you shorten the barrel extremely .

 

[Dunwaters]

Who’s barrels are these ,,,,,,,can the machinist walk down an alley without bouncing off the walls

Only up to lunch time. He’s not great when he gets back from the pub.

 

[Sharpie]

Looks like they learnt from Sassen!

Haa haa. "gun drilling" a barrel blank as straight as possible is not a simple process. The temptation always being to up the feed rate, not keep sharpening the drills absolutely perfectly before they definitely need it, get the orders out. A drill naturally wants to wander, a bit like a snake wriggling around.

It does help if you start with good uniform steel, already stress relieved at least before starting. Or whichever other way comes to mind, straight from hot rolling, or cold rolling, stress relieved, hardened, tempered, whichever order you do it in, and at which stage of the process.

Some recognise this and straighten them up afterwards, still done by eye and a press. before profiling them. As used to have to be the way back in the day.

TBH, if that is a necessary process, maybe some machine could be invented to do it, using lasers and whatnot.

Here's how Pedersoli do it, real old school stuff, not just once but three times along the way. Heck, they even still broach rifle their barrels, they are rather unique in doing that. But there again they don't exactly make precision firearms. Nor, in that vid., did I see any mention at all about heat treatment.



And even Sako/Tikka give them an eye over before letting them out. Every one. Not sure the inspector is looking for the straightness though, I suspect that's not in question with the way they make them.

 

[Ronin]

Haa haa. "gun drilling" a barrel blank as straight as possible is not a simple process. The temptation always being to up the feed rate, not keep sharpening the drills absolutely perfectly before they definitely need it, get the orders out. A drill naturally wants to wander, a bit like a snake wriggling around.

It does help if you start with good uniform steel, already stress relieved at least before starting. Or whichever other way comes to mind, straight from hot rolling, or cold rolling, stress relieved, hardened, tempered, whichever order you do it in, and at which stage of the process.

Some recognise this and straighten them up afterwards, still done by eye and a press. before profiling them. As used to have to be the way back in the day.

TBH, if that is a necessary process, maybe some machine could be invented to do it, using lasers and whatnot.

Here's how Pedersoli do it, real old school stuff, not just once but three times along the way. Heck, they even still broach rifle their barrels, they are rather unique in doing that. But there again they don't exactly make precision firearms. Nor, in that vid., did I see any mention at all about heat treatment.



And even Sako/Tikka give them an eye over before letting them out. Every one. Not sure the inspector is looking for the straightness though, I suspect that's not in question with the way they make them.

Have you done much gun barrel drilling ?