24 grain 5.56mm ammo.

[Deadman]

I recently conducted my first 3 weeks of Australian Army recruit training. This of course means that I trained and used the Steyr Aug.
Also during the training we used 24 grain 5.56mm amo (F1 ball, brass case, 24 grains of Nitrocellulose compound, steel/lead projectile with copper jacket), and that is the standard round for the Aus. Army for both the Aug and the FN Minimi.
So basically how does a 24 grain round compare to 55,63 or 69 grain 5.56mm ammo?

 

[Paochow]

You are comparing apples to oranges, the 24 grains you are refering to is powder weight, whereas the 55,62, and 69 grains are bullet weights.

I am guessing that the Australian Army uses the SS109 NATO standard which is a 62 grain bullet.


A 24 grain bullet would overstabilized to the point of great inaccuracy, in 1/7 or 1.9 rifling.