Hodgdon Triple Seven Powder Pellets

I don't know about the pills, but the powder is much cleaner and somewhat hotter than Pyrodex, other fakes, or black.
I shot a little in a .44-40 sixgun and it worked quite well with hard lubed bullets. Clear water cleanup, just like the advertisements.
 
The Triple Seven pelletes are formulated to duplicate the Pyro pellets - so they really are functionally interchangeable.

Triple Seven is much easier to clean than Pyro but watch for the dreaded "crud ring" in the breech area when shooting it. It seems some rifles develop a fouling build-up down in the breech and loading subsequent shots can be difficult unless you run a cleaning patch or 2 between shots. I haven't experienced that problem in my Knight, but I've heard many talk of it. I think using non-magnum loads helps with this, so keeping your charge down to that 90 to 100gr level shouldn't cause you much trouble, but just make sure your load is seated well if you try the 777.
 
Careful with pressure

Please be careful to note the difference between 777 and Pyrodex, pressure-wise, it is 15%. I have a gun in which I normally use 80 gr. Pyrodex to shoot 1-inch groups at 100 yards. I use 70 gr. 777 behind a 180 gr. bullet (this is for does, deers, female deers, at close range).

Using 150 gr. of 777 in a 150 gr.-rated gun probably won't make it blow up because of the extra insurance factor added to the rating but still, be careful, as the pressure difference can affect your accuracy.
 
777 fouling

I should have noted above too that I can shoot 12 loads of 70 gr. 777 and wipe with one patch wet with water and it almost completely removes the fouling. I never heard of the "crud ring" noted above.

The sabot has not become difficult to load even after the 12 loads. :)
 
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