02-21-2024, 09:09 PM
DP your posts confuse me. The only bullet I see is a 60 gr Nosler in 223, and no pills in the 6 Arc. 556 and 6 Arc are going to be apples and oranges.
So since this is not a 556 forum, and no data to work with in 6 Arc, what gives??
And is the 6Arc a gas gun or bolt?
AR Comp is a derivative of RL-15, which is mentioned in Hornady data for 87 gr-105's... RL-15 not being the best powder in terms of MV... but when they tweaked RL15 into Ar comp it sped up in burn rate, so it is not 1 for 1.
I find Comp's best uses for me in the 6.5 grendel 120-class bullets, but again, the grendel needs a different powder burn rates due to being 6.5 vs 6mm (less bore cross section usually means slower burn rates needed). I also use it sometimes in 308 for my 110 ttsx, but note again this is a fast little bullet ... up-shot is you might find it too fast for the 6 Arc, so won't get enough powder charge in it to accelerate properly.
So since this is not a 556 forum, and no data to work with in 6 Arc, what gives??
And is the 6Arc a gas gun or bolt?
AR Comp is a derivative of RL-15, which is mentioned in Hornady data for 87 gr-105's... RL-15 not being the best powder in terms of MV... but when they tweaked RL15 into Ar comp it sped up in burn rate, so it is not 1 for 1.
I find Comp's best uses for me in the 6.5 grendel 120-class bullets, but again, the grendel needs a different powder burn rates due to being 6.5 vs 6mm (less bore cross section usually means slower burn rates needed). I also use it sometimes in 308 for my 110 ttsx, but note again this is a fast little bullet ... up-shot is you might find it too fast for the 6 Arc, so won't get enough powder charge in it to accelerate properly.