.223 primer pocket crimp removal
- Thread starter FTGV
- Start date
I agree with ipscgraz above, I picked up a .223 case at the range and thought it had a large rifle primer. What happened was the primer pocket was over reamed and when fired the primer flowed around its enlarged edges and mushroomed. And the danger of over reaming and enlarging the rear of the primer pocket is the primer could let go at its edges and score the bolt face.
A VLD deburring tool has a much steeper angle and will remove the crimp and remove much less brass because of the cutting angle. And the tip will bottom out in the primer pocket and stop the removal vs a countersink or a standard deburring tool. And if you are doing large quantities of cases I would recommend the Dillon Super Swage 600.
If you are going to remove the crimp by hand I recommend the RCBS trim mate reamer made for their case prep station chucked in a drill. It will remove the minimal amount of brass and slightly round the mouth of the primer pocket for easy seating.
Holding the cases and reaming will cause sore fingers when doing large batches of brass and where its nice to have the Dillon Super Swage 600.
A VLD deburring tool has a much steeper angle and will remove the crimp and remove much less brass because of the cutting angle. And the tip will bottom out in the primer pocket and stop the removal vs a countersink or a standard deburring tool. And if you are doing large quantities of cases I would recommend the Dillon Super Swage 600.
If you are going to remove the crimp by hand I recommend the RCBS trim mate reamer made for their case prep station chucked in a drill. It will remove the minimal amount of brass and slightly round the mouth of the primer pocket for easy seating.
Holding the cases and reaming will cause sore fingers when doing large batches of brass and where its nice to have the Dillon Super Swage 600.
The RCBS primer pocket swager also works very well and is very fast to use. But costs around $55. On the other hand it's very quiet to use.
This works great!
Thanks for the suggestions . I found a 3/8" 82 deg countersink that seems to work good. Chucked in my Dewalt a couple spins is all it needs. I do find some primers still need some extra force to seat properly with my Lee Ergo hand primer. I'm using the Federal GM205 match primers. I may try some Winchester or CCI's and see if they are easier to seat.
I tried a sample of reloads with both the Federal and CCI primers. Four of the five CCI primered loads failed to fire. All the Federals fired fine. I have read that the cup on the CCI BR4 is harder than the Federals?It appears the firing pin spring in my Axis is not up to the task.
