I'll try this request over here, ha. I find data but I don't think the manuals are showing loads as hot as 64K ( full potential of the design) I particularly looking for 2900+ fps ( if the rifle likes it of course) and Temp stable powders. I would add R22 to that as I have had mixed results in some cartridges with it. But particularly the Extreme Powders and the newer Reloders. Thanks.