txfireman

Not quite sure what the question is... Are you asking which can you get the most loads from?

I use both the 2f with a gold label anf 3f with the Silver label. I use the 2f in my inlines and 3f in the sidehamers. The general rule has been to reduce your 3f load approx. 10% from the 2f load. That is the general rule, but it is really going to depend on the gun you are shooting. The most significant difference can be shown with barrel length. In my 24" Remington I can produce about 200 fps more with a 100 grains of 3f than I can with a 100 grains of 2f. In the 26" Rem and A&H I see less difference. In the 28" side hammers there is virtually no difference in velocity of 80 grains of 3f vs. 80 grains of 2f, BUT I do notice a sharper recoil with the 3f. I can not say that I notice that in the inlines with the recoil pads that are on the guns.

Again the gerneral rule being 3f reaches peak sooner and burns out sooner. It also may generate a higher peak than 2f depending on how you are igniting it and how much energy is required to start you projectile moving. 2f takes a greater timeto peak and burns longer and as with 3f peak temperature and pressurewill depend on the amount of energy necessary to start the projectile and the energy needed to get it out the barrel.

Just my random operating thoughts....