Southern, it's awesome that you're using titegroup and that load is pretty close to what we've put together so far. We actually loaded up a few rounds at 4.2 with the 180g lead and some at 4.4. We're hoping to chrono them this weekend so once we do, I'll let you know what we found. Since I'm new to reloading, do you think the extra 5g of bullet would have a major (pun intended) impact on the PF numbers? Also, what PF are you achieving with your load?
DH