dies are dies, the holes and threads are all the same size, so yes they are interchangeable.
Only Lee and Dillon have powder through expander dies. Lee has the patent on them and Dillon licenses the patent from Lee.
So would Titegroup be a good powder for .38spl and 9mm as well?
My dad currently uses Clay's powder for reloading. I found out he is using an aftermarket Bar-Sto barrel on his 4006 if that makes any difference.
Tightgroup is a good powder for 38sp and 9mm. Clays (not Universal Clays) is a faster powder than Tightgroup and is a good powder for 38 spl, and for 9mm, but NOT for max loads.
Because the charge weights are so low with both TG and Clays, it is VERY easy to double charge a 38 spl case and not see it. Trailboss is a special bulky powder that is designed for light loads in long cases.
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