22cal tuners ?

[archerykrazy-22cal]

Can you put a Harrell Tuner on a barrel with a 11 degre crown.

 

[6.5SH]

The crown doesn't matter. Just has to be a straight taper for the last inch within their diameter limits.

Harrell Rimfire Tuners

They will bore it to size for free within the specs they list.

 

[littlepod]

Can you slide the harrel tuner all the way back on the bore to not make the OAL longer?

 

[Williwaw]

Can you slide the harrel tuner all the way back on the bore to not make the OAL longer?

No.