4198 loads for 147 and 125 gr????

[madscientist]

Alright I have been a long time stalker first time poster here so help me out.
Long time AR fan so I have a model one barrel on a cmmg upper w/m16 bcg.
I already load h4198 in my 223 loads so 8lb kegs=savings.

Here are the two loads that I want starting points loadings for H4198.

125 gr Nosler -supersonic for coyotes
147 gr pulled military -supersponic for blasting


One more thing anybody get the 190gr privi to cycle subsonic without the adj gas tube?

Thanks for the help guys,

[Colohunter]

Can't help you with the H4198. But I can tell you that I got AA1680 to work with supsonic 150grs and 22gr bullets, so I would imagine that you get it to work with the
190s. You may have to try a couple different powders to get your AR to function properly. You may not be able to stick with the same powder as your 223 AR.

[txjm]

I tried 4198 in mine (a little longer 300W) trying to get a little more velocity and maybe a little more gas to cycle my rifle gas port position AR. I did not get the velocities that I did with 1680.

[JonPalmer]

I played with the H335 a little and had good luck. I also have alot of 4198 and am currious how it works.