Hey Guys, new here to the forums. I hate to post a new tread on an old topic; especially on my first post. I pretty much had my mind set on a .243 ai, but after seeing a post about the ultimate 1000 range varmint rig I started to reconsider and had a few questions. I'm planning to build on rem adl short action. I know the 6-284 will fit, but am not sure if i will be able to play with the seating depth and different bullets all that much (100gr factory 6mm ammo clears mag. but is close) especially with ballistic tips I know they are usually a little longer than plain old soft points. Quote: "The 6x284 is number 1 because of the combined qualities; Velocity, Accuracy, Retained energy down range, Low recoil and brass selection." I know that greater impact velocity = greater energy, but how much more powder does the 6-284 use to gain how much more velocity over the .243 ai. Better retained energy usually comes with heavier bullets, and brass selection is not to great either. i already have 243 brass and making brass is alot eaiser and cheaper for the 243 ai. Small gains probably wouldnt be that impessive to me, but it sounded like the 6-284 might have some real advantages over the 243 ai. i also feel like the .243 ai would burn powder more efficiently due to a shorter stubby case. I'm not tring to start a pissing contest here, but I would like to here some 1 elses opinion berfor I make a final decision. I guess i should add more info on what im planning for my build. a 24" barrel with a 1-10 twist and plan on using hornady 87gr. v-max or 87gr. bthp. longest shot ever taken was around 450yrds so not so much of a 1000 yrd. gun. More like 500-750; 800 yrds tops or else i would get faster twist and hevier bullets.(knowing my gun could pull off a shot like that would be awsome). I dont want to go smaller on the bullet weight either cause i might have to shoot the ocasional deer with this rifle. Also curious if any one has shot a yote with a barnes tsx. I apoligize for the long post, I just sort of kept going.