Hello all. I was wondering if anyone of you might know how many different twist rates knight rifles made in the extreme line of guns? I have a low serial#...oooo2 ss.45disc extreme with a th stock that I keep coming up with a 1:28 twist. I know of a 1:20 and a 1:30 any others?

There is always an odd-ball or two but this is the factory information for 45's

Serial number change for the .45 twist rate was anything prior to #2291 on mild steel and #5043 on stainless were 1:20 twist.

50 cals were all 1-28

Sabotloader,
I am pretty sure that is with the disc rifle, not the disc extreme. I would be really surprised if your disc extreme is not a 1 in 30 twist WW.

My 45 disc elite seems to have a 1:30 twist. Only checked it once, but that is what i came up with.

Yep! I agree

Thanks for the information. I was hopeing that i had measured wrong.Its just nice to know that my 45extreme and my 45elite that also has a low serial #...00220 would have the same twist.Its easyer to keep up with in for my records.

This only applies to the Super DISC .45 that uses the orange plastic disc. Extremes and Elites are 1:30.