maillemaker
New member
http://www.forth-armoury.com/temp/bullets/bullets.htm
Click on my thumbnails for larger versions in the above link.
I went out and purchased some Hornady 230g FMJ ball ammo to use as a guide for setting up my dies. The Hornady ammo had an overall length (OAL) of 1.25". However, when I drove my Oregon Trail cast bullet to that depth, the shoulder of the bullet was still visible above the case mouth. When I inserted the bullet into the (removed) barrel of my Ruger P90 pistol, I could feel a very slight stick as it went home - I suspect the shoulder of the bullet was biting into the ledge in the chamber that is meant to bear against the case mouth (the .45 ACP registers on the case mouth, not the rim).
So, I dialed down the bullet seating stem until the shoulder of the bullet was just flush with the case mouth. This resulted in an OAL of 1.232". The rounds sit in the barrel chamber as easily and well as a factory round. My case mouths measure .470" in diameter.
My Lee Reloading Die manual suggested 4.0 grains of Bullseye powder with a 230 grain bullet, as a starting load. Other sources corroborated this. However, the .43cc powder measure, which is supposed to drop 4.0 grains, only dropped 3.8 grains on my machine. So I tried the .46cc chamber. This dropped 4.2 grains of Bullseye powder. Since it was suggested to me that 4.0 grains may not reliably cycle my action, and 4.4 grains would be better, and 5.0 grains is the maximum, I think I will be safe starting with 4.2 grains of powder.
I made 10 rounds, and I will try them this weekend. Hopefully my gun does not blow apart.
What do you think?
Steve
Click on my thumbnails for larger versions in the above link.
I went out and purchased some Hornady 230g FMJ ball ammo to use as a guide for setting up my dies. The Hornady ammo had an overall length (OAL) of 1.25". However, when I drove my Oregon Trail cast bullet to that depth, the shoulder of the bullet was still visible above the case mouth. When I inserted the bullet into the (removed) barrel of my Ruger P90 pistol, I could feel a very slight stick as it went home - I suspect the shoulder of the bullet was biting into the ledge in the chamber that is meant to bear against the case mouth (the .45 ACP registers on the case mouth, not the rim).
So, I dialed down the bullet seating stem until the shoulder of the bullet was just flush with the case mouth. This resulted in an OAL of 1.232". The rounds sit in the barrel chamber as easily and well as a factory round. My case mouths measure .470" in diameter.
My Lee Reloading Die manual suggested 4.0 grains of Bullseye powder with a 230 grain bullet, as a starting load. Other sources corroborated this. However, the .43cc powder measure, which is supposed to drop 4.0 grains, only dropped 3.8 grains on my machine. So I tried the .46cc chamber. This dropped 4.2 grains of Bullseye powder. Since it was suggested to me that 4.0 grains may not reliably cycle my action, and 4.4 grains would be better, and 5.0 grains is the maximum, I think I will be safe starting with 4.2 grains of powder.
I made 10 rounds, and I will try them this weekend. Hopefully my gun does not blow apart.
What do you think?
Steve