Using a 16" APC Carbine, 1 in 10 twist, trying to determine the maximum weight/bullet size that will stabilize reliably. I know there are other factors in terms of the barrel length, grooves, etc.. Looking for a rule of thumb type input here. Also, what is the lightest weight round that can be run with that much twist? Can you drop to 149/150gr without issues?

Also not sure what the limitations are in terms of the overall size of the round, chambering safely in the weapon and the maximum size that fits in the LR118 PMAG.

There are some amazing results with the new aluminum tipped .308 rounds, but it looks like the overall length is going to be too much for the mag, probably too much for the chamber.

Have the following to test next week:

Black Hills 168gr BTHP
Black Hills gold 178gr ELD-X
Asym 168gr SMK
Asym 175gr SMK
Berger 185gr Juggernaut OTM