Howdoo, I'm going to get a barrel on order when i get back from pd hunting in a week. With a gun that i don't intend to shoot any bullets less than 100gr and up to 125gr wildcats , should i get a 1-9 or 1-10 twist? Also the gun will become a 25-06 AI . Also again--> can i use my lee collet dies for neck sizing only ? Thanks Mike By the way i'm going to give rock creek barrels a whirl ,ss-27" -5R -#4 .