220 maker Rex load data

[bgblue1978]

Does anyone have experience or load data starting point for the 220 grain maker Rex loaded to subsonic velocity in 300 blackout?

I'm especially looking for OAL and favorite powders. I have 296, cfe blk, a1680, and lil gun on hand. I'm hoping to use these for hunting this year in a supressed bolt action.

 

[rain164845]

I don't recall the charge, but it works well with 1680.

 

[bgblue1978]

Thanks I'll start with 296 and 1680. They still haven't replied to my email, most likely not staffed right now. But I did find on their site they list the loaded ammo version of this as 2.185 coal in case anyone else is looking for that info.

 

[SkullyDogPDW]

I think I perfected my load last night. Reloading data for 300 Blackout, DDM4-PDW, 7 inch barrel, 1 in 7 twist, Silver Buffer Spring, Scythe Ti Suppressor, 200 grain Maker REX, 8.9 grains of N110, CCi 450 primers, Case volume is 23.4 grains of H2o COAL 2.130. - This gave me a five shot string (as measured by my Magneto Speed,) of 1088 (First Round Pop,) 1054, 1059, 1059, 1064...with a Standard Deviation of 13. And it cycled and locked back reliably. This will be my Whitetail load for next year.