What’s the twist rate on the slug .22 23.5” LW barrel?

What about what the land and grove measurements? I wouldn’t be surprised if they went straight up 22lr barrel.
As a matter of fact I don’t understand why airgun barrels don’t adopt the .22 lr pattern all together. Sure they can play with twist rates but there’s zero reason why airgun barrels are anywhere from .216 through .224. Frustrating to say the least.
I have used Brownell’s .22lr red man liners in a few rifles with great success with EunJin pellets, RWS slugs ( Krale used to carry them) as well as cast bullets .
The new rage in slugs are the 41 grain boat tails now available from a few manufacturers. Well guess what, they look almost identical to what precision timbre shooters have been using for years. Years ago Bob Sterne designed some cast bullets with driving bands and a rebated boat tail. Again this has all been done before.

Sorry about the rant.here’s what LW has for a 1:16 barrel listed in .22

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