Working with an AR15 with 16-inch barrel and a Pistol length gas setup. Have 3 lb of IMR 4198. Would like to use this with the Lee 155gr Lee and the 230gr Lee. Does not matter if sub or Super sonic, just want them to function in it. Can use any help. Can size them .308, 309, or 311 if this of help. Can also PC them.
I never found any love in the BO with IMR 4198 or Lil'Gun myself.
Which was dissapointing, as both are always in my magazine for other calibers.
But my BO interests lay only in full potential supersonic loadings anyway, so ymmv.
My best results dictate H110 for the lighter weights and AA1680 for 150gr and up.
Look up Sierra Bullets 300 BO Load Data. Their 300 BO 150 gr. jacketed data for IMR4198 is a place to start.
COME AND TAKE IT
Let’s Go Brandon!!!!
Anyone using this powder with the 230gr Lee Bullet
https://shop.hodgdon.com/imr/imr-4198
shows no starting load for a 230gr bullet, but there is a maximum.
Looks as if that would be a sub loadOriginally Posted by dbosman
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