so what bullets are everybody shooting? is there a power factor involved where it has to meet a mninumum requirement? Im not so worried about some require some dont I just want to know what I need to meet the requirements for both my .40, 9mm,.
and for my 223. Oh and why a 18" barrel vs a 16" if you had a uber accurate 16 wouldnt that suffice .
Most "outlaw matches don't have powerfactor requirements for their bullets. Shoot a bullet that works reliably in your gun. I shoot 124's in my CZ SP-01.
As for rifle, many people use 55gr bullets for shots out to 200 yards and something heavier beyond.
You can absolutely use a 16" barrel and do just fine. The reason that some competitors choose an 18" bbl is 2 fold. first, a rifle length gas system is believed to have a lesser recoil impulse than a carbine length system. That means you can recover quicker from each shot. Second, an 18" bbl is the shortest bbl upon which a rifle length system will operate.
that being said, don't base your entire choice of gun on that little tidbit. Get something reliable and affordable. then go practice with it. think of it this way, if you are going to start racing cars, you probably won't jump straight into a NASCAR, you'll drive something more manageable first, until you find out what really works for you.
Practice with your equipment is much more important than the "name" on the equipment.
Ive already got some pretty nice ARs and 3 nice handguns I am quite proficient with all of them I just want to see what bullets to iuse and what velocity to shoot them because all of my ammo is loaded with shtf in miond so its standard +p loads so i dont think they would be that great with speed and accuracy in mind