I never did have to full length size my Handi Rifle in 30/30AI.
Also, I only used a .308 Winchester FL die, and "neck" size the 30/30 AI cases with IT. Worked great.
I planned on buying a 30/30 Ack Imp die set, but 30/30 cases are so common and easy to find than I never did!
I believe I went as many as 7 reloads without ever 'needing' full length sizing, and sold the rifle before I loaded more number of times.
Yep, find an old .308 Win FL die and have at it. You will need a 30/30 shell holder though.