Originally Posted by
1168
Remember when everyone was complaining about .080 ports on DD and Noveske barrels? I bet someone would trade barrels with you on EE. I don’t think you are going to optimize the current weapon to your ammo; it should work the other way around (I thought that was the point of handloading?).
10.3” barrels have a pretty narrow range of ammo they will tolerate because of having so little barrel after the port. Port size sets ammo type, and the Mil Mk18 was not built with light ammo in mind. I would bet if you put a regular spring and H2 in it, it’ll eat M855 without issue. If you must shoot lighter ammo, you might find a 10.x” with a slightly larger gas port more suitable. If you plan on shooting a range of ammo types, you might find that an 11.5” barrel is more forgiving. There’s a reason that length is popular on M4c, and among LE, whose issued ammo can be subject to change. Soldiers, Marines, Sailors, etc, don’t have to worry about that. Ammo only seems to get hotter with succesive generations.
10.3” barrels like to be suppressed...
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