commando74,
You and I are kinda running parallell only it's ben more like 26-7 years on the sidelines or me!
Used to go ground hog hunting every weekend.
Getting ready to retire and hopefully get back in operation.
I have 10 inch 221 barrel but have not been able to shhot and devvelope any kind of loads.
On the subject of cast, you might want to visit this site.
www.castboolits.gunloads.comEvery kind of shooting of cast projectiles.
Thought this last summer was my time to retire.
Looks more like maybe this summer.
I'm ready. Not prepared, but ready!

I have the hornet barrel, 25-35 and 222 barrels as well.
Thinking about getting some carbine barrels and finishing my own stocks for same.
Wish I were further along in my casting and I could provide you with some test projectiles.
You can probably find those on the above website however if you ask.
FWIW
DaveP kywoodwrkr
Good luck in your quest.