I actually figure to reform 30-06 if I ever find a gun. Any of you do this? Is there a need to open the neck first? All I have converted so far is .270 into .25-06, going smaller and having to trim. That really wasn't worth it with all the work. Whelen on the other hand is more costly and apparently of questionable quality right now. I have never bought a factory .45-70--contained myself, got dies, brass, and all and handloaded everything I ever used.