Choke in fx .22 barrels

[weevil]

8

I've never seen one of those barrels, so I can't comment. The traditional air rifle pellet barrels have more, and very shallow groves compared to a traditional rifle barrel. On average, I don't think that those barrels work well for heavier slugs with a long bearing surface. I'm sure that the hunt is on for a hybrid barrel that does well with both.

If you look at the first post, it specifically asks about the FX superior barrels/liners to which I’m referring. If you’ve never seen one and can’t comment then …..

FWIW, the FX STX liner is one of the many successful outcomes of the hunt for a hybrid barrel (that’s been taking place for at least a decade).

 

[elh0102]

If you look at the first post, it specifically asks about the FX superior barrels/liners to which I’m referring. If you’ve never seen one and can’t comment then …..

FWIW, the FX STX liner is one of the many successful outcomes of the hunt for a hybrid barrel (that’s been taking place for at least a decade).

Okay, consider me properly chastised for commenting.

 

[Ta-Ta Toothie]

That there is the problem. I do cast my own slugs and that's why I needed to know the groove diameter so I can size to it. The slug I tried to push through was sized down to.215 and I couldn't push it past the choke. This is the slug I want to shoot. Pure lead.

View attachment 357885

I realize this is an old thread, but I'm getting .214 with the superior heavy 1:16

 

[Firewalker]

I ordered a few boxes of NSA .217 slugs for my Maverick with the standard liner because the .217 FX Hybreds fit my barrel with a little resistance . But the NSAs chamber too easy and I'm sure it's affecting accuracy. If I try them again it will be .2175 .

My Taipan w CZ barrel likes .216 . I'm glad they have a variety of diameters.

That's what I shoot, 27gr, .2175 diameter. 1MOA at 100y in calm conditions all day long.

My Maverick Sniper just eats them up.

 

[Ta-Ta Toothie]

Groove is .2195 towards the breech end. That's a heck of a difference.