No idea about the rifle twist but I put a 257 Roberts Adams Bennet on a mauser. It's a little rough inside and is finicky.
I clean it bare, then 4 fouling shots. It's good for about 15 rounds before groups open. I didn't build it for a daily shooter, it works for me and would do it again.
BTW I just shot it today, last 3 shots inside 1/2". And it will do that regularly. I believe they have improved the insides to on the new ones.