thanks Oskar, how about 3031 like I use in my 30 30 Ackley: it's fast powder I think?
I have a 16 guage over 7x57R drilling with 22mag insert and Hensoldt scope with claw mounts, bought it in Germany in 1982 while in the Army, I love it and hunt with it alot: I want this Hollenbeck to be comparable. You're right about the extra cost but this Hollenbeck was hidden and just surfaced and I want to give it new life. Probably originally owned by my great grandfather: must have been a hek of a turkey gun in it's day.
Sounds like insert with .308 a viable option as Der Ami points out.
Researcher scared me and I appreciate the cautious approach.
Wish I could find more loading data for 25-25, got a few suggestions from loaddata.com
thanks: great forum
