Just bought a Bill Myers custom Anschutz 1913 off the classified ads. This will be my first rimfire BR rifle but I've shot 3P with an Anschutz 54 before and shot a lot of SK plus which might not be good enough even for practice on BR. What is a good practice ammo for under $10 a box? I'm sure I'll pick up some Eley Tenex for match use but want to get some trigger time to develop my technique without spending $18 a box. Also where's a good place to order paper targets?
As many have posted, shoot the ammo in practice that you would shoot in a match. To find that ammo, you must test in the best conditions you can. You should shoot groups, and when you find a lot, not BRAND, that shoots good/best, you also need to shoot a card or several. You could refine this exercise by doing the same on different days when temps, slight variations in wind, etc are different.
Keith was referring to Tenex when he typed 10X. Common switch on the name, used quite often. I shoot Center X, Midas+, Eley Match, and Tenex. I mostly shoot Match and Center X. You do not test BRANDS, well you could, but the best way is to test lots. Your rifle will tell you what lot to buy. Don't worry about brand, and if your wallet doesn't mind, cost. If you test enough, you may find a lot of any of the above that will shoot the best. One lot of Tenex may be killer in your rifle, the next 10 lots of Tenex may suck. There may be a lot of Match (more economical) that is better than the more costly Tenex you found. Same with Lapua. Midas+ costs more than CX (Center X). My second to last test at Lapua in Mesa, Az found a lot of CX that blew away any Midas+ we tested. Unfortunately, there were only 7 bricks of it. I bought it all. If there had been 2 cases of it, I would have bought it all. Not because it was cheaper though, but because it shot better than anything I had ever tested in that rifle.
Don't equate cost of ammo to being the 'best' ammo. Also understand, if you find a super lot, buy as much as you can. When that lot is gone, it's gone and the whole process starts over again.
As far as targets go, all three of the 'major' sanctioning bodies sell targets for their game. ARA, IR50/50, and ABRA. I use their targets for testing how a lot performs on the card, but for testing groups or tuning I make my own. I use foam board (Wallyworld, hobby/craft stores) and draw a grid on it with a ballpoint pen and metal ruler. The foam board cuts nice clean bullet holes and a 20 x 30 inch piece in 1" squares gives a ton of aiming x's to test with. Cost for one board is around a dollar. Hope some of this 'long' post helps.