JEBruns
Member
I've had this die for a year or so. Use it on my Dillon 550, which is setup strictly for 6.5CM. It works well for months, but very recently I've noticed more and more of my reloads don't seat all the way in my Hornady case cage (I check every reload). To the point were some won't chamber in my Tikka T3X Tact A1.
I narrowed it down to the RCBS MM die. So I messed with that a bit. Raised it in the press so the bushing was just touching the plate. Lowered it so that the die body was hard against the plate. And tried it in between. Same results. Not every case gets flared at the bottom, but more and more of them do. Tried different brass (Hornady and Aquila), tried brand new Hornady brass, same-same.
Normal brass routine is anneal, lube, size/deprime, check/adjust case length, tumble with pins, dry, hand prime. And they pass the case gauge before going into the 550.
Really has me baffled. I haven't changed the sizing die nor adjusted it. I have a call into RCBS. Been waiting a few hours for their "die tech" to call me back, but figured I'd post about here also. I really like the die. So nice to be able to drop the bullet into the window and be able to quickly and accurately adjust the COL for different loads. I do have a couple of other 6.5CM seating dies (Hornady and Lee), so I guess I'll try one of those if I don't hear back from RCBS soon.
I narrowed it down to the RCBS MM die. So I messed with that a bit. Raised it in the press so the bushing was just touching the plate. Lowered it so that the die body was hard against the plate. And tried it in between. Same results. Not every case gets flared at the bottom, but more and more of them do. Tried different brass (Hornady and Aquila), tried brand new Hornady brass, same-same.
Normal brass routine is anneal, lube, size/deprime, check/adjust case length, tumble with pins, dry, hand prime. And they pass the case gauge before going into the 550.
Really has me baffled. I haven't changed the sizing die nor adjusted it. I have a call into RCBS. Been waiting a few hours for their "die tech" to call me back, but figured I'd post about here also. I really like the die. So nice to be able to drop the bullet into the window and be able to quickly and accurately adjust the COL for different loads. I do have a couple of other 6.5CM seating dies (Hornady and Lee), so I guess I'll try one of those if I don't hear back from RCBS soon.