75 amax in ar

[19Scout77]

For those of you trying to push the ar boundaries and single feed 75 amaxes in your AR, what is max charge of varget you are using? How fast?

 

[Killswitch Engage]

i dont shoot them in an ar but i use 25gr varget with lewpow brass. coal for me is 2.400
if you have the throat length im sure they will shoot for you.

 

[I Am Hero]

I will have to dig out my old reloading book but I used to reload the 75s all the time for my AR. I had a Spikes Tactical with a 20" FN barrel (1:7 twist) on there and it would shoot sub MOA all day with 69 gr SMKs and 75 gr amax loads. Loaded them to fit in Pmags, never saw pressure issues of any sort.

 

[ggmanning]

24.5g

 

[Playerz1337]

23.8 gr here in Savage 26" varmint barrel. Tried them in AR but the 1:9 twist barrel shoots 68gr BTHP in much smaller groups.

 

[19Scout77]

24.5g

What length barrel? Velocity? Pressure signs? Thanks.

 

[ggmanning]

18" 1:7 twist at high 26ish if I remember correctly. No pressure issues in my gun. I began work up at 22.5gr Gun has a Wylde chamber.

 

[19Scout77]

Thanks. Nearly identical specs as my rig.

 

[ggmanning]

No problem and good luck with it.

 

[ggmanning]

Also consider trying some Southwest Ammo 77SMK match loads. My gun loves 'em.

 

[HANDYMAN]

24.5gr Is my go to high power load. I get 2750fps from a 20in barrel.