Thread: 30-40 Krag

Originally Posted by grandpamac

Well done Mangle,........................Between you and me if by Enfield you mean a P14 or M17 rather than a Lee Enfield they can be loaded close to .308 ballistics but don't tell anyone.............

Awwwwwwwwwwwww. As I have a nice example of a P14,




don't be coy. Please Share the load.

Greetings Mangle,
Wet day yesterday and started thinking what projectile would stabilise in a 1 in 14 inch twist. I have two .308 target rifles with 1 in 14 inch twists so this was for me as much as you. Stability of projectiles is governed by length and to a lesser extent velocity. I had a fumble around in my .30 calibre projectile supplies and measured the length of what I had plus calculated the length of others. Next the length of the 180 grain Hornady Interlock Flat Base was run through one of the on line ballistic calculators. I suspect that the cartridges you purchased are loaded with this projectile. Turns out the Hornady ILFB is marginally stable in the 1 in 14 twist so should give reasonable accuracy, 165 grains would be better. Boat tail projectiles would be marginal from 150 grains up but round nose projectiles up to 180 grain should shoot well. All this is much in line with my previous wild arse guess and only applies if your twist is 1 in 14 inches. 1 in 10 or 1 in 12 twists should stabilise everything.
Regards Grandpamac.