Vepr 12 sbs what length to cut

[abz400 3]

I'm planning on doing vepr 12 sbs and my question is what the shortest can you cut a barrel and be able to shoot all types of ammo.has anybody this yet.

[evlblkwpnz 3,418]

That is a broad question. 3 dram loads can be a reality with 13.5" of barrel, unmodified hammer spring, and unmodified factory recoil springs. Work needs to be done to get there.

[abz400 3]

What is the ideal barrel length for a vepr 12 sbs

[evlblkwpnz 3,418]

14" if you want to run 3 dram loads with factory springs in the weapon. It requires gas and action work. Some with defects require other work.

[mike12345 18]

12 is ideal length for a shotgun it's a 100fps muzzle velocity loss from 18in.

 

You can still run the flight control or versatite wads without the back of the wad being blown off. If you cut it at 11in the fingers will be blown off. At 12 You'll still be able to hit at 100 yards. You can run the hornady 1500fps superformance or TAP to pick up the lost muzzle velocity.

[mike12345 18]

It's not too long it's not too short. You don't have to shorten the gas system which cuts the gas piston so short it comes out of the gas tube. You can still run regular buck with decent pattern dia.

[mike12345 18]

Just don't screw a muzzle break onto it and make it longer for no apparent reason.

 

How loud it is would be another reason. I do like to shoot things from time to time without ear plugs.

Edited November 3, 2017 by mike123456

[evlblkwpnz 3,418]

12 is ideal length for a shotgun it's a 100fps muzzle velocity loss from 18in.

 

You can still run the flight control or versatite wads without the back of the wad being blown off. If you cut it at 11in the fingers will be blown off. At 12 You'll still be able to hit at 100 yards. You can run the hornady 1500fps superformance or TAP to pick up the lost muzzle velocity.

There is no "back of the wad" and this statement does not convey an accurate understanding of those loads. There is an open-front cup that does not open with petals on the rear of it that are designed to open up and slow the wad/cup so it falls behind while the load continues to travel about its trajectory.

 

SBS is not intended for use at 100 yards. SBS is intended for very close range use. Just because you can doesn't mean you should.

 

12" is not ideal for clearing a home alone with a regular length stock on the weapon. Velocity is less of an issue when you are actually using the SBS as intended.

[mike12345 18]

It may not be intended for it but if you had to shoot 100 you would completely miss with that short of a barrel. The 12in will put most of the pellets on target. 100yards isn't that far hallways or longer shots may be required.

 

The 8 in does fire a 40in pattern which fired at a 20x40 shilouette means half of it missed at 12feet with standard buck.

 

My 12in is 29in oal and shorter than the M4 I carried and used for that. I have no problem with it.

 

There's a front and a back I call it like I see it.

Edited November 7, 2017 by mike123456

[mike12345 18]

If you like holes all over the place except the bad guy great

 

I can choke the 12in and I won't rip out the tube. Hone/tap I can lengthen the forcing cone also but it won't be chrome. You can rent reamers and taps so you don't actually have to buy one to do your gun. You can do these by hand with a tap wrench and a lot of cutting oil which is how I do it. You don't need a lathe the reamers are pretty straight forward.

Edited November 7, 2017 by mike123456