Ryan55555
Well-Known Member
Hello all -
Working on a dummy round to send so the smith can cut my chamber.
I have a Savage LA and plan to shoot the Berger 180's.
I will be using standard Win brass in 7WSM.
Please check my math on this:
Brass (Win)
OAL = 2.100
Base to neck = 1.857
Neck length = 0.243
Bullet (180 Berger)
OAL = 1.525
base to bearing surface = 0.220
bearing surface length = 0.541
ogive to tip length = 0.764
To use all of the neck on the bearing surface:
shortest COAL = 2.621 (would not want to do this)
longest COAL = 3.162
I was thinking of going 3.000 COAL. This would leave room to move the bullet in and out a little bit.
Please let me know if I am on track of missing something.
Thanks,
Ryan
Working on a dummy round to send so the smith can cut my chamber.
I have a Savage LA and plan to shoot the Berger 180's.
I will be using standard Win brass in 7WSM.
Please check my math on this:
Brass (Win)
OAL = 2.100
Base to neck = 1.857
Neck length = 0.243
Bullet (180 Berger)
OAL = 1.525
base to bearing surface = 0.220
bearing surface length = 0.541
ogive to tip length = 0.764
To use all of the neck on the bearing surface:
shortest COAL = 2.621 (would not want to do this)
longest COAL = 3.162
I was thinking of going 3.000 COAL. This would leave room to move the bullet in and out a little bit.
Please let me know if I am on track of missing something.
Thanks,
Ryan
