Took my new ar15 in 6.5 Grendel to the range to get it at least sighted in yesterday. Ive got about 15 different loads worked up. Left them at home and took a bag I made for sight in. I found some Hornady interlock 100 grain bullets that were being closed out for a good price so bought 500 of them. Figured if they didn't shoot they be good blasting bullet and if they did they would be great deer bullets. they run at a bit over 2800 fps out of my 18 in ar so that's 243 power level right there out of an ar15. Got them on paper and shot two 5 shot groups. One went 3/4s of an inch and one just a smidge bigger, maybe 7/8s of an inch. Load was 41 grains of tac. could have stopped right there but went home and loaded 10 more of those and 10 with 40 grains of 2230 to see which is better then im done and its ready to kill some deer. rest of my test loads ill just blast up because this is the bullet I wanted to use anyway. Don't get many this easy to work with.