I got this idea from an old post in the KI RNG forum, but I thought I'd flesh it out. So here you go.... the definitive Store TP guide for ranged weapons:
Thresholds for x-hit build
8-hit: 12.5 TP/hit
7-hit: 14.3 TP/hit
6-hit: 16.7 TP/hit
5-hit: 20.0 TP/hit
4-hit: 25.0 TP/hit
3-hit: 33.4 TP/hit
Bow (with 90 delay arrows)
490 delay bow: 14.8 base TP / 15.0 base TP with 120 delay PPA
6-hit: STP+13 / STP+12 for PPA WS
5-hit: STP+36 / STP+34 for PPA WS
4-hit: STP+69 / STP+67 for PPA WS
524 delay bow: 15.1 base TP / 15.2 base TP with 120 delay PPA
6-hit: STP+11 / STP+10 for PPA WS
5-hit: STP+33 / STP+32 for PPA WS
4-hit: STP+66 / STP+65 for PPA WS
540 delay bow: 15.2 base TP / 15.4 base TP with 120 delay PPA
6-hit: STP+10 / STP+9 for PPA WS
5-hit: STP+32 / STP+30 for PPA WS
4-hit: STP+65 / STP+63 for PPA WS
600 delay bow: 15.6 base TP / 15.9 base TP with 120 delay PPA
6-hit: STP+8 / STP+6 for PPA WS
5-hit: STP+29 / STP+26 for PPA WS
4-hit: STP+61 / STP+58 for PPA WS
Gun (with 240 delay bullets)
480 delay gun: 15.9 base TP
6-hit: STP+6
5-hit: STP+26
4-hit: STP+58
582 delay gun: 16.6 base TP
6-hit: STP+1
5-hit: STP+21
4-hit: STP+51
600 delay gun: 16.8 base TP
5-hit: STP+20
4-hit: STP+49
640 delay gun: 17.1 base TP
5-hit: STP+17
4-hit: STP+47
660 delay gun: 17.2 base TP
5-hit: STP+17
4-hit: STP+46
Crossbow (with 192 delay bolts)
280 delay crossbow: 12.6 base TP / 10.7 base TP with 140 delay GMB
7-hit: STP+14 / STP+34 for GMB WS
6-hit: STP+33 / STP+57 for GMB WS
5-hit: STP+59 / STP+87 for GMB WS
288 delay crossbow: 13.0 base TP / 10.9 base TP with 140 delay GMB
7-hit: STP+10 / STP+32 for GMB WS
6-hit: STP+29 / STP+54 for GMB WS
5-hit: STP+54 / STP+84 for GMB WS
432 delay crossbow: 15.2 base TP / 14.8 base TP with 140 delay GMB
6-hit: STP+10 / STP+13 for GMB WS
5-hit: STP+32 / STP+36 for GMB WS
4-hit: STP+65 / STP+69 for GMB WS
Cannon (any ammo is over 999 delay TP cap)
Any cannon/shell: 17.9 base TP
5-hit: STP+12
4-hit: STP+40
3-hit: STP+87
Questions and comments welcome.
