Author Topic: Black powder to Pyrodex to Triple Seven Equivalents (Read 988 times)

TKO · « **on:** August 30, 2004, 12:34:26 PM »

I have a TC Firestorm and according to TC site:

Loading: The Fire Storm can accept Magnum charges of up to 150 grains of FFG Black Powder or Pyrodex® equivalent (or 3 Pyrodex® 50 caliber, 50 grain Pellets).

First of all I USE LOOSE POWDER NOT PELLETS. The way I read this, the max load of loose black powder or pyrodex is 150 grains by volume. My question is will 150 grains by volume of 777 be okay?

Thanks!

cross posted in the Tradional Forum

Keith Lewis · « **Reply #1 on:** August 30, 2004, 12:51:24 PM »

I think the general feelings are that BP and Pyrodex are equivalent volume for volume. Triple seven pellet for pellet matches Pyrodex OK. When talking loose powder the Triple Seven should be reduced at least 15%. Personally I would not shoot more than 100 grains of loose 777 as that is all the energy you need unless you are planning on Cape Buffalo. I shot a couple of 100gr. FFG 777 with a 348gr. Powerbelt and the recoil was all I want to deal with.

TKO · « **Reply #2 on:** August 30, 2004, 01:07:05 PM »

Keith,

Thanks for the reply. It was sort of what I figured by reading old posts. The largest 50 caliber load of 777 I found was 125 grains loose.

Recoil is not much of a consideration with me. When I want to get pushed around a bit I drag out the .458 Lott, or believe it or not, my Marlin .450 with a handload with a 460 grain hardcast at 1800 fps will rip you even better (MUCH lighter gun and a lot of drop at the comb of the stock).

IntrepidWizard · « **Reply #3 on:** August 30, 2004, 01:23:14 PM »

Remember with pellets there is a loss of velocity and a increase in pressure as gas can and will escape around them,therefore I do not recomend pellets.

JPSaxMan · « **Reply #4 on:** August 30, 2004, 03:30:10 PM »

TKO...refresh my memory...is the Firestorm a flintlock type rifle? If so, you might know that you have to add 5 grains of either FFFG or FFFFG of good ol' blackpowder in the charge before you put in your Pyrodex or 777 (and reduce the P or 777 charge by 5 grains)

TKO · « **Reply #5 on:** August 30, 2004, 03:44:43 PM »

Fishman029,

Yes, the FireStorm is a Flintlock. I have had no problems with ignition with either Pyrodex or 777 with just the 4f in the pan, but I have heard of other that have had problems.

thanks

JPSaxMan · « **Reply #6 on:** August 30, 2004, 03:48:03 PM »

Yea, well, you can add another story of flintlocks having problem w/ out a blackpowder charge in w/ the 777. I had a CVA Silver Trophy Hunter (which I'm getting rid of in place of a Traditions Hawken). It would take 4 primer pan charges before the sucker went off. You knew it was burning b/c u could smell it. But...it was that slow at going off. But I think the Firestorm has a fairly large flash hole, does it not? Maybe that's why!

TKO · « **Reply #7 on:** August 31, 2004, 11:42:06 AM »

It does have a large flash hole. I have had excellent ignition with the rifle with all types of powder. I am very pleased with it and I, too, am looking forward to hunting here in the Keystone state.