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Volume vs weight 777

 
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  #1  
Old 10-11-2013, 08:05 PM
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Volume vs weight 777

I'm shooting 777 in my .50 because its what I have on hand. My question is, if I weigh 150 grains of powder or 100 grains ( this is hypothetical) on my reloading powder scale, is it the same as the prepackaged pellets?? So to make this more simple, does 100 grains of loose 777 powder weighed on my powder scale preform the same as 2- 50 grain pellets??
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Old 10-12-2013, 08:45 AM
ATH ATH is offline
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Re: Volume vs weight 777

100 grains volume is very different from 100 grains weight. You can't interchange the two.

The pellets are calibrated to be equivalent to the grains by volume. A load of two 50-grain pellets should give you similar velocity as a loose load of 100 grains.

If you want to go by weight, volume measure your load then put it on the scale and see what it weights. It's been years since I did that but from memory, if you volume measure a max 150 grain load you will find it weight a lot less than that....weigh 150 grains on a scale and you will over-charge your gun.
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Old 10-12-2013, 01:24 PM
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Re: Volume vs weight 777

ATH is correct... !!

T7, Pyro or any other propellant is different in consistency and size granules. THAT'S why they want you to use either pellets or a volume measure of loose powder. Assuming that 100grs weight of T7 would equal 100grs by volume will get you into trouble.

ASSUMING............ that your volume measure is correct and they can be off as much as 30grs and I have one, if you had one that was accurate, then you could fill the volume measure to 100grs, then pour it on the scale to determine the weight. I would highly suggest that you do this at least 10 times, write down each volume load by weight, then average the ten different. Many shooters that I know use the T/C model that you can see through and it appears that most are fairly accurate.

On my old desktop that went kaput.... I had the conversion number that another shooter had put together for T7. That's gone like the desktop.
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Old 10-12-2013, 09:36 PM
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Re: Volume vs weight 777

T7, 100grains max load by volume for the 50cal muzzle loader.
Please let me know if I am wrong on max load.
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  #5  
Old 10-13-2013, 06:42 AM
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Re: Volume vs weight 777

Quote:
Originally Posted by screwwork View Post
T7, 100grains max load by volume for the 50cal muzzle loader.
Please let me know if I am wrong on max load.
That............ depends on the specific muzzleloader you have, which you didn't mention.

With some muzzleloaders a 100gr VOLUME charge is about max. On the other hand, most newer modern in-lines are capable of a 150gr VOLUME max load..... although most don't shoot a max load as accurately as a somewhat lighter load.

For anyone to provide an accurate answer..... what muzzleloader do you have? What does your manual say if you have one?
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  #6  
Old 10-13-2013, 11:01 AM
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Re: Volume vs weight 777

Encore,
Your correct I didn't say what gun I was using, it is hard to help me without the info needed to safely point me in the right direction.
I have the TC Pro Hunter 50 cal muzzleloader rifle.
T7 container label said max load was 100 gr by volume, my TC Encore manual said rifle max load was 150 gr by volume. This where my I misunderstood the max loading of T7 for my Muzzeloader. as I'm not planning on using the max load but a load that works good in my gun an accurate.
Right now I have 2 lbs of T7 and after I use it up I'll switch over to BH 209 powder.

Thanks Randy
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  #7  
Old 10-13-2013, 12:56 PM
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Re: Volume vs weight 777

Quote:
Originally Posted by screwwork View Post
Encore,
Your correct I didn't say what gun I was using, it is hard to help me without the info needed to safely point me in the right direction.
I have the TC Pro Hunter 50 cal muzzleloader rifle.
T7 container label said max load was 100 gr by volume, my TC Encore manual said rifle max load was 150 gr by volume. This where my I misunderstood the max loading of T7 for my Muzzeloader. as I'm not planning on using the max load but a load that works good in my gun an accurate.
Right now I have 2 lbs of T7 and after I use it up I'll switch over to BH 209 powder.

Thanks Randy
The Encore platform rifles are what I shoot. I've had a number of them, with some handed down and others sold. Been shoot'n them since I could get my hands on one. Every one of them have been exceptionally accurate. I'm now down to just three muzzleloaders, one being "Bad Medicine" a Pro Hunter 209x50. I don't care for T7 and never did, although its a good propellant. You could shoot a max load of T7 VOLUME but, I'd reduce the charge by at least 10% by VOLUME. How it will shoot would have to be proven.

I know a lot of shooters with Pro Hunters and each one of them is capable of 200yd accurate shots of 4" or less. However none of them are shooting T7 and are shooting BH209, with most shooting a Barnes. I know a couple guys that shoot further, with one taking a nice buck at 287yds last year. However he shoots a considerable amount each year. Michigan had close to 660,000 deer hunters last year and we have a lot of muzzleloader shooters.

I know it feels like a waste to leave two bottles of T7 on the shelf but, once you turn to BH209 and start shooting it, you'll be happy to leave the T7 on the shelf. Its the only propellant I shoot, other than 2f in my sidehammers.

My load........ 107grs VOLUME ........ (75grs weight)
CCI209M primers
Barnes 250gr TMZ

I couldn't be happier
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