777ffg equivalent load of 3-777 pellets

[Nic_58]

For you that have shot both Triple Se7en ffg and Triple Se7en pellets, what is the loose powder equivalent of a 3 (50) pellet load of Triple Se7en?  I would like to  be able to equal the FPS of the 3 pellet load with a loose powder load.  I'm thinking ~ 120-125 grains of loose FFg would get me in the neighborhood but I'd like to hear from those with actual range experience before I measure out the powder.  Thanks.

[bustedknee]

I think...

Three 50 grain pellets of 777 is equal to 150 grains of loose 777.

I think.

By volume!

Don't even think of weighing it.

[bustedknee]

Having said that, I think I read somewhere that the company reccommends 120 grains of loose 777 to equal three 50 grain pellets.
So it doesn't make a lot of sense to me.

[Nic_58]

Three 50 grain pellets of 777 is equal to 150 grains of loose 777.

Bustedknee, I know for a fact that it's NOT 150 grs. of loose!  That's a huge amount of loose powder since Triple Se7en is 15% hotter in loose form.  You're probably close on the 120 grs. though.  I'm looking for someone who has shot both 3 pellets and loose over a chronograph to see exactly how much loose powder it was taking to equal 3 pellet loads.

BTW, I weigh all my powder on a scale after confirming the load with a volume measure.  That way I know every charge of powder is exactly like the last one.

[Redhawk1]

120 gr. of loose triple 7 is equal to (150 gr. or 3 triple 7 pellets.) And 90 gr. of loose triple 7 is equal to (100 gr. or 2 triple 7 pellets.)  We are talking Volume here not actual weight.

[Biff Mayhem]

Using the 15% 'volume' rule, approximently 128 gr. of loose is equal. Since Hogdon made Pyrodex and 777 pellet strength equal for safety reasons,  a typical 50 gr. 777 pellet has roughly only 42-1/2 gr. of powder in order to match the weaker strength Pyrodex powder..

Trying to duplicate bullet speed by comparing both 777 loose and 777 pellets fired out of your ML is however somewhat different -  due to individual rifle bore diameter size and how firmly you seat the powder and bullet. Every rifle and every shooter will create different grain volumes in order to duplicate both. Each individual shooter will create different bore pressures running this test. You will need a chronograph to determine your identical load comparing both. With muzzleloaders, chronograph readings are determined by volume and pressure.

[bustedknee]

I don't worry a lot about the velocity.  But I do check it out of curiosty.

I start with a mild load then work my way up to the most accurate.

The velocity is nice to know, to calulate trajectory, but not necessary, just shoot it at the different ranges and see where it hits.

[Redhawk1]

I don't worry a lot about the velocity.  But I do check it out of curiosty.

I start with a mild load then work my way up to the most accurate.

The velocity is nice to know, to calulate trajectory, but not necessary, just shoot it at the different ranges and see where it hits.

I am the same way, I don't care about the velocity, I actually shoot my guns at different ranges after I sight it in, then I know where it is at different ranges.  The main important thing is accuracy.

[Nic_58]

I shoot my muzzleloaders over the Chrono all the time at the range.  For one thing, I like to know the average FPS of my loads, then I run it through a ballistics calculator.  I'll later take the gun out and shoot it at different ranges just to see how real world shooting compares to the charts.  Also, shooting over a Chrono can tell you a lot about your loading technique, such as consistent pressure on the ramrod when seating a bullet.  You'd be amazed at how much difference this can make shot to shot.

I've got a real good accuracy load for my Omega consisting of 110 grs. Triple Se7en ffg under a 200 gr. T/C Shockwave.  That is my baseline "go to" load.  But, I like to experiment with new stuff, therefore the interest in the 3 Triple Se7en pellet load.  I'm gonna pick up a box of them this week and also weigh out some equivalent loads of the loose powder.  I'll shoot them both when things cool up a bit and see how they are accuracy wise.  I've got some of Winchester's Triple Se7en 209 primers to try out with these loads also.  Just need  some cooler weather, 100 degrees is too darn hot to even go outside!