I have read many accounts in which people have stated that you must reduce the max load of 777 to 15% below what BP/Pyrodex would be. And I have read accounts that state otherwise.

Looking at Hogdgon's site it says nothing about having to reduce loads for any other reason but to match the velocity of such loads. I have asked them twice now about the safety of such, but have yet to get a reply. What say you?

And I've also read opposing threads with compression of 777. I only see that you want very light compression if loading in cartridges.

When using 3F instead of 2F (.50 cal) is there a general max load reduction? Traditions told me to reduce by 5grns with no reduction due to projectile, whereas Lyman's would have me reduce it by 20-30 grns depending on bullet weight.

T7 is suppose to have 15% more power as BP/Pyro. You reduce it that much if you want the same load. If you're not at max load with the BP/Pyro you can use the same amount of T7 for an increase of power.

Usually, 3f will have close to 10% more power than 2F.

"If you're not at max load with the BP/Pyro you can use the same amount of T7 for an increase of power."

I'm confused. If the max 3F load is 80 grns can I use 80 grns of 3F 777 or must I reduce it?

What gun are you using that has a max load of 80gr?

Keep going with this Muley... Need to know what gun and generally what weight projectile...

rodwha

Most but not all ML's have a max load of 150 grains of real BP or Pyrodex. If you are using T7-2f you should reduce the the 150 grains by about 15% or if you are using T7-3f reduction is around 25%. Hodgdon recommendations are a bit high as I have found. More like 10% with 2f and 15% with 3f, but it is always better to be safe than sorry...

No rifle yet (only ROA). I'm looking at Lyman's Deerstalker and Trade Rifle mostly, but also at Lyman's Great Plains Hunter, Pedersoli's Country Hunter, and Tradition's Deerhunter.

Lyman's states that a max load (2F/3F) is 100/90 for lightweight sabots and 100/80 for heavy sabots and conicals. 110/90 for RB.

I intend on using 3F 777 in the ROA and would like to use just one powder.

Opinions will vary but my opinion is that your most reliable ignition in a sidelock will be with black powder. I am not saying the subs won't work cuz they will.

Would 3F help with more reliable ignition?

I'm not too keen on storing BP, and I'd prefer to use something that cleans easily, fouls the least, and smokes the least. Although it would be somewhat cool to smoke out the range once in a while!

flounder: What is the difference in your opinion or experience? Is Pyrodex not as reliable either (compared to BP)?