Listed below is a page from the Alliant website at
www.alliantpowder.com and these are maximum loads. Herco is listed as 9.0 grains for a 250 grain bullet. Speer reloading manuals have a bunch of .45 Colt loads using Herco powder. All the best...
Gil
.45 Colt (start over with Pistols and Revolvers)
• 250L
7 Matching Recipes
Minimum OAL
(inches) Bbl Length Primer Powder Charge Weight
(grains) Velocity
(fps) Chamber Pressure
(psi) Print
1.550 7.3 Win WLP American Select 5.5 795 c.u.p.
13,000 Print this recipe
1.550 7.3 Win WLP Bullseye 5.4 805 c.u.p.
11,800 Print this recipe
1.550 7.3 Win WLP Red Dot 6.0 830 c.u.p.
12,000 Print this recipe
1.550 7.3 Win WLP Unique 8.0 850 c.u.p.
11,800 Print this recipe
1.550 7.3 Win WLP Green Dot 6.8 855 c.u.p.
12,300 Print this recipe
1.550 7.3 Win WLP Blue Dot 11.5 890 c.u.p.
12,200 Print this recipe
1.550 7.3 Win WLP Herco 9.0 910 c.u.p.
12,600 Print this recipe