.308 Barrell Length??

[VSSF]

Whats the longest length everyones shooting with 175gr SMK's?

 

[Boblor]

Bbl length and 175's

I am not everyone, but I use a 30 inch barrel, 1-11" twist with either SMK 175's or Dietlein Swaging 175's.
Bob

 

[404tbang]

velocity?

Boblor, what velocity do you get with that barrel length and that bullet?

Thanks!
Greg

 

[Rustystud]

My F-TR GUN Has a 32" Broughton

Most of my customer who shoot F-TR shoot 30-32" tubes.
Nat Lambeth

 

[Boblor]

Greg,
I am getting 2750 with either bullet, Lapua case, wolf primer, 43.6 gr Varget, bullet back .025 from the lands.

 

[matt wolf]

I was shooting 175 smks out of a 27" 1-11 rock tube and getting 2730. Now I'm up to a 31" 1-12" broughton shooting 155.5 bergers quite a bit faster than that!

 

[sendero300]

Depending on powder used you could go as short as 20", but you see that more in benchrest and Tacticool rifles. For F-class I would go with at least 24", and 30" seems to be a lot more popular. Depends on how fast or slow your powder is.

 

[DougBG]

Factory load out of 30" barrel?

I'm curious about about what muzzle velocities have been measured with factory loads from a 30" W308 barrel and how they differ from manufacturers numbers. Anybody got numbers for Federal GMM 175 SMK or Black Hill? They've gotta be better than the advertised numbers from both because of the barrel length.

 

[Bill Ohio]

Whats the longest length everyones shooting with 175gr SMK's?

Everyones doing their own thing. Figure 20" is the shortest you should probably go, out to 34" on the way long side.