That liner doesn’t make any sense to me, why 800mm for pellets and light slugs? I am already shooting 23 grain slugs at 900fps with my 500mm barrel. If anything that 800mm need to be 1:14 or even 1:12 TR. only reason to have 800mm barrel is to push the 38g or heavier slugs.
Yeah I have no idea why they made this length with that twist rate. I ordered the 1:16 800mm from Huma and they sent me this, it went straight back to NL
Hello in iran we have great news for benchrest with prophet airgun. but tuners like reza hoseinnejad work hard to get best record with this gun. here is records for 50 m. The first, second and third people of the competition shot with the same gun. 248 score is top level for airgun...