The Absolutes will show very low engraving pressure. This results in more or faster powder needed to get to pressure than is typical for the bullet weight. I like to start with a known quantity. For the Absolute Hammers I will look at data for similar weight lead core bullet and use the max listed load and work up from there. These loads will be very mild so choose a powder that has room in the case to work up. Watch your pressure signs as you work up.
Only do this with Absolute Hammers not with other Hammers.
The velocities l obtained were at least 200 fps more than I was able to get with other makes of the same weight. However, I discovered that after seating, the bullets were a little loose in the case necks, so I applied a very slight crimp to keep the bullets in place. Subsequent trips to the range revealed a significant accuracy improvemet when I did this. In my 280 Ackleys, I've stayed with powders that provide 95 % fill densities and above and also those that are least affected by cold weather "hunt" conditions. So far the Absolutes have been 5 for 5 on elk ad 1 of 1 on mule deer, so
I've been pleased with the results.