Any of you guys use IMR4198 or H4198 in a AR-15? If so what barrel and gas system, and what charge/bullet weight functioned for you
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Any of you guys use IMR4198 or H4198 in a AR-15? If so what barrel and gas system, and what charge/bullet weight functioned for you
Tried once and got too much bridging across the mouth of the case making a mess. IMO there are a lot better powders to use for 223.
Expect good results may be had w a 300 BLK
I did run IMR4198 in Colt M16A1 carbine, 14.5" barrel, with 55 gr fmjbt bullets. No issues. 20.5 grs. The carbine has a different port size & location, then their rifle. . The AR15 port size is different between manufactures. The port pressure must be correct to work the action.
IMR4198 also worked in Ruger Mini-14 & old Armalite AR 180 , 5.56.