Ishmael
Literotica Guru
- Joined
- Nov 24, 2001
- Posts
- 84,005
Back to the range tomorrow with the chronograph.
First of all I profiled my chamber (and if anyone's interested I'll tell you how I did that) and it's LONG in the throat. The recommended length over all for the 300 Win Mag. (min) is 3.4" So I seated an empty cartridge to a LOA of 3.530", chambered it no problem. After I profiled the chamber the bullet was actually 200 thousands off the lands. I'm loading the Hornady 208 gr. ELD-Match bullet and their tech crew recommends a 20 thousandths set back. So I readjusted my die for a 50 thousandths set back just in case.
I'm using RL-26 powder and the recommended loading is 74 gr. So I've made up a batch of cartridges starting at 72 gr and going up to 74.5 gr in .5 gr increments. If there are no signs of over pressure I'll probably make up another batch going from 75 to 76.5 in .5 gr steps. I should find a 'sweet spot' somewhere in those batches.
For the techies;
Federal brass
CCI 250 primers
Alliant RL-26 powder
Hornady 208 gr ELD-Match bullets.
Ishmael
First of all I profiled my chamber (and if anyone's interested I'll tell you how I did that) and it's LONG in the throat. The recommended length over all for the 300 Win Mag. (min) is 3.4" So I seated an empty cartridge to a LOA of 3.530", chambered it no problem. After I profiled the chamber the bullet was actually 200 thousands off the lands. I'm loading the Hornady 208 gr. ELD-Match bullet and their tech crew recommends a 20 thousandths set back. So I readjusted my die for a 50 thousandths set back just in case.
I'm using RL-26 powder and the recommended loading is 74 gr. So I've made up a batch of cartridges starting at 72 gr and going up to 74.5 gr in .5 gr increments. If there are no signs of over pressure I'll probably make up another batch going from 75 to 76.5 in .5 gr steps. I should find a 'sweet spot' somewhere in those batches.
For the techies;
Federal brass
CCI 250 primers
Alliant RL-26 powder
Hornady 208 gr ELD-Match bullets.
Ishmael