The chrono is only half of what you need to take max advantage of the flex in handloading. The other instrument is an internal ballistics program like QuickLoad. Together they make for a very adult rocket chemistry set.
BTW: QuickLoad would have told you that you'd not break into the 3's column w/ that 22" barrel. But it also would tell you that you've got a long ways to go before you have anything close to pressure limits -- approaching 3,200fps