Thread: 22-250 Ackley Improved Load info

Greetings Curtis27,
There are some simple ways to calculate what should be possible but you need to know the net volume of the parent and improved cases. Obviously the improved case needs to be fire formed. You can measure the case volumes by filling each type of case with either ball powder to the base of the neck. Weigh the result and calculate the increase in percent Divide the percent increase by 4 and this is the possible increase in velocity over the ADI listed maximums all else being equal. You can work up to this carefully using the chronograph to tell you when to stop.
This velocity will be less than claimed by many but it will be at factory pressures. I can do a worked example for you if you like.
Regards Grandpamac.