So, after just joining this forum specifically because I ran across this post, it seems I lucked into a good option for myself, as I am in the same exact boat as the OP..except that I grew up with a .22LR and .243 in my hands from the time they let me plow by myself.
A few months ago, me and my befuddled friends all decided we needed to be able to shoot "long". We had no real idea what that meant until we had wasted many $100's of dollars on cheap AR's, cheap bolt .223's, etc..
I have traded in my Adams AR to Buds and now have a DPMS 260rem on the way. I decided that since I have very shallow pockets indeed for this activity, that the 260 will provide me with the ability to actually "reach out there" some, while also being able to take care of business up much closer if need be. Now if we can just figure out how to get the Rock chucker into action..!
For the OP..
I have been searching all over the net, as well as the gun show that was going on this weekend, and found that there is indeed an easier time to be had finding 260rem factory loads as compared to finding 6.5 Creedmoor.
Sportmans guide seems to be the best for the cheaper stuff, but Midway also has a few choices in stock, and on sale.
Good luck with your endeavor sir..!