New to an AR. I got lucky with a BCA this year, and gambled on a 20" ss upper and it shoots real good.
Have you shot anything with the 129 ablr yet? I see the minimum velocity is only 1300fps.
I used 100 Nos bt in a 17" 260rem for several years, and they killed deer like lightening. Probably the best drt combo I have ever used. But I do like spine and neck shots when possible. They say 1800fps minimum on them, but they always did fine for me out to 300yd plus.
Life is busy, so I may just use factory loads this year. The 123sst is shooting good, and a buddy killed 3 deer last year with them. What I hate is, 3 boiler room shots and 3 different results. Bang flop on mature doe, 200yd runner on a yearling, and 50yd dash on a big buck. I know all deer react differently, but would like to hear more consistency.
T/C Encores. Smokeless Savage and Remington muzzleloaders. Excalibur and Ten Point Crossbows