buffalo chip jed

What weight spring to you all use, example 9 pound 11 pound? Thank you

So I'm new just starting and trying to get into wild bunch I have already made up the ammo for the 1911. I was wondering if I can use a 38 rifle or if I need to use a 44 or a 45. Second question the power factor for wild bunch rifles is 60 right. Edit thank you in advance.