MK262

[Dogtown]

I use the hell out of N150 in .308WIN semi-autos. I hadn't thought to try it in a 77gr AR15 load because frankly N140 is slower than TAC (which I use in my other non-precision oriented AR15s), and N150 would be even slower.

 

[MarshallDodge]

I have tried N540 with 77 SMK and 80 ELD in a 24" bolt gun. No chrono data yet as I'm still looking for pressure signs as I turn it up.

On edit. It may not be the best for an AR gas system.

 

[MarshallDodge]

I

I certainly would load it with a recipe to follow. How many grains N140 are you using....same COL as the MK262?

Yes, 2.260" == AR mag length

 

[dgheriani]

I use the hell out of N150 in .308WIN semi-autos. I hadn't thought to try it in a 77gr AR15 load because frankly N140 is slower than TAC (which I use in my other non-precision oriented AR15s), and N150 would be even slower.

Yeah, I got it for .308s but ran out of N140 and wasn't shooting much .308 so I figured I'd give N150 a go in my .223 bolt (26") and get great results, 24.7 gives me 2950 with 75s and <1/2moa. Just hammers. Might be too slow at 2.260 in an 18" barrel though, I dunno. I'll try and report back.

 

[Dogtown]

I’ve got a range day soon and have been thinking of trying some new powder/bullet combos. Will try N150 w/ .223 heavy bullets