Post by kai on Aug 15, 2016 1:27:45 GMT -5
I've been reloading for over 40 years on and I've limited my charges in the past to the maximum recommended charges listed in various reloading manuals. I'd like to maximize the velocities from some rifle cartridges and would know how to determine the maximum powder charges.
Scenario 1: New wildcat cartridge with no loading data:
A new wildcat cartridge that will be used my first Thompson Center encore rifle.
Scenario 2: 270 Win:
I'd like to develop maximum velocity with a 130 gn. Cutting Edge CNC machined solid copper bullet with a BC of 0.540.
The published max load by Honardy for the Hybrid 100V powder is achieving 3,120 muzzle velocity. The max load of 56 grains is not compressed and it will easily accept a few more grains of powder.
How can the 270 WSM and 270 Win Ackley Improved cartridges achieve more power than the standard 270 Win cartridge without having excessive pressure?
Do they somehow generate more velocity without increasing pressure, or are they allowing the pressures to be higher than allowed with the 270 Win standard cartridge?
What are some methods for determining maximum powder charges and avoiding excessive pressures?
Scenario 1: New wildcat cartridge with no loading data:
A new wildcat cartridge that will be used my first Thompson Center encore rifle.
Scenario 2: 270 Win:
I'd like to develop maximum velocity with a 130 gn. Cutting Edge CNC machined solid copper bullet with a BC of 0.540.
The published max load by Honardy for the Hybrid 100V powder is achieving 3,120 muzzle velocity. The max load of 56 grains is not compressed and it will easily accept a few more grains of powder.
How can the 270 WSM and 270 Win Ackley Improved cartridges achieve more power than the standard 270 Win cartridge without having excessive pressure?
Do they somehow generate more velocity without increasing pressure, or are they allowing the pressures to be higher than allowed with the 270 Win standard cartridge?
What are some methods for determining maximum powder charges and avoiding excessive pressures?
