Nice rig. My 700 Fireball started life as a Light Varmint Stainless Fluted (LVSF). Swapped out the tupperware stock for a Boyd's Thumbhole Laminate and put an older Redfield wide field of view scope on it. Very accurate little rig but not so light with the laminate stock. My longest kill shot was a crow at ~ 230 yards. Groundhogs always seem to be closer in but the property doesn't have really long shooting lanes.
I'm in Cutback's camp. I've tried lots of powders and bullets but far and away my favorite powder for the Fireball is Reloader #7. Very consistent and very accurate with Nosler 40 grain Ballistic Tips and Sierra equivalents. Never tried the Hornady bullets. H-110 and Lil'Gun are ok, 4198 is a step up from them. Do yourself a favor and try RL#7. Then try to stop smiling.