You'll probably find that the hornady 75BTHP will do pretty good if you can find a calm day. I don't know your barrel length but if you can get them around 3000fps it should get you do 1000 yards with relative ease.
My new long range rifle project - just finished assembling. Goal is to shoot highest BC .224 bullets through 223 brass to 1000 yards plus reduce wear on 6.5CM rifle without going to exotic brass or high cost.
Tikka T3X Varmint 223, 1-8, local gunsmith MOSS FIREARMS threaded 5/8x24
KRG Bravo stock in appropriate Sako Green - thanks cattleman!
Area 419 adapter and brake (fits my modified AAC 762SD also)
MDT 223 magazine
Burris XTRII 5-25x50 SCR MIL FFP scope in ugly camo color (hugely discounted due to camo color)
UTG PRO 34mm rings (yes, UTG PRO - very nice)
I added weight inside the Bravo stock "void" with lead weights for tire balancing - I can add more or remove easily