dradave
Member
Folks, I load .223 with 55gn FJMBT with a cannalure bullet. I have a few questions pertaining to crimping a cannalure rifle bullet.
Previously I loaded a hundred rounds of .223 at an OAL of 2.240 using Winchester 55gn FMJBT bullets with a cannalure using Lee dies and a Lee FCD as the crimping die. The problem at this OAL is that the cannalure, when seated, was above or just at the case mouth. The cases were trimmed to a length of 1.750. I shot these rounds and they were fairly accurate and cycled fine in my AR.
My question pertains to the cannalure and the crimp. The Lee manual suggests an OAL of 2.230 with my load of AA2230 @ 23.5gns. Even at this OAL the cannalure is just at the case mouth and not seated where the crimp would actually engage the cannalure.
The FCD crimp die came with the die set and is a collet type. Is it necessary that the cannalure of the bullet be seated inside the case mouth where the crimp would engage it (like in a roll crimp for a pistol round) or is it ok for the cannalure to be above the case mouth and the crimp engage the flat part of the bullet below the cannalure?
I'm assuming the length of the case plays a part as the cannalure will be in varying contact with the case mouth depending on the length?
Thanks...
Previously I loaded a hundred rounds of .223 at an OAL of 2.240 using Winchester 55gn FMJBT bullets with a cannalure using Lee dies and a Lee FCD as the crimping die. The problem at this OAL is that the cannalure, when seated, was above or just at the case mouth. The cases were trimmed to a length of 1.750. I shot these rounds and they were fairly accurate and cycled fine in my AR.
My question pertains to the cannalure and the crimp. The Lee manual suggests an OAL of 2.230 with my load of AA2230 @ 23.5gns. Even at this OAL the cannalure is just at the case mouth and not seated where the crimp would actually engage the cannalure.
The FCD crimp die came with the die set and is a collet type. Is it necessary that the cannalure of the bullet be seated inside the case mouth where the crimp would engage it (like in a roll crimp for a pistol round) or is it ok for the cannalure to be above the case mouth and the crimp engage the flat part of the bullet below the cannalure?
I'm assuming the length of the case plays a part as the cannalure will be in varying contact with the case mouth depending on the length?
Thanks...