It's incredibly easy to find out how many rounds per pound eh.... 7000 grains per pound. Divide 7000 by how many grains per round gives you number of rounds per pound. If you are using powder that comes in ounces instead of pounds, there are 437.5 grains per ounce.
Powder calculations - please help
- Thread starter kdunning
- Start date
It's incredibly easy to find out how many rounds per pound eh.... 7000 grains per pound. Divide 7000 by how many grains per round gives you number of rounds per pound. If you are using powder that comes in ounces instead of pounds, there are 437.5 grains per ounce.
Fair point.... the powder fire itself would be impossible to contain with m without a specialized fire extinguisher,, a regular one will do nothing as powder does not require oxygen to burn (it contains an oxidizer which does the job of providing oxygen).
But the after effect, I think in most circumstances, would be easy to contain. The fire from the powder wouldn't last very long, though in your situation you probably would hit the ceiling with it (you're right about the blowtorch type effect - try putting twenty or thirty grains of powder in an open, strait wall case and dropping a match or a burning qtip into it - it blowtorches up at least a foot, do it outside please
). My experience with burning powder is that the flame is so short lasted that things don't have the chance to really get going before the powder burns out. No doubt a pound would burn for longer, but I think most people's situations would be dealt with by having a fire extinguisher handy. I also feel it would be very rare, if not impossible, for the hopper to ignite without something else wrong. Even if the primer tube goes, there is no connection between the two, and the primers aren't going to start going off after they have flown out etc. I guess if they or the shrapnel from the tube hit the hopper and busted it then the powder could ignite bit again, I think that's a fairly long shot. Don't doubt it happened in the case above, but I think more factors were at play (possibly a poorly set up or unclean press?)
- Location
- Banana Republik of Kebekistan
I second that, would love to hear OP's answer.
Meanwhile, my best guess is a pal helped him calibrate the powder measure at initial setup. He has been cranking away since without knowing /understanding the importance of process control. Caliper, scale, case gauge... who needs that stuff?
OP is darn lucky Darwin has been busy elsewhere so far, me think.
Wait a minute, I just saw this.
How did you measure your powder charge without a scale? Please tell me you didn't just turn the dial on the powder thrower to the 4 Mark and call it good???
Those marks are there for reference (ie I've found that to get 25 grains of H4895 my dial needs to be at 16.7, so next time I go to load that charge weight I can dial to that and know that I'll likely be very close, and I'll fine tune it with a scale to be sure I'm dead on). That Mark doesn't mean grains though, and the weight thrown will vary for every different powder on a given Mark (I.e. the 4 Mark might give 8 grains of titegroup, but only 6 grains of H4198, and maybe 5 grains of 4831, etc).
If you just set it to 4 and loaded up a bunch of rounds, you HAVE to disassemble them all and reload them all. Big pain in the ass but you could easily end up blind or dead, or hurting the guy shooting next to you.
Also, I too would like to know where you shoot...I want to be no where near you shooting until or unless you decide to research and learn how to load properly. You aren't playing with soap and water, you're playing with something that is extremely flammable, releases huge amounts of gas when burnt, and easily has the capability to disassemble your gun in a very rapid manner (and it will take it down farther than a field strip
)But in all seriousness, you shouldn't load another round until you read the manual on your machine AND read at least the entire lymans or Lee leading manual instructions and info.
- Location
- Over the rainbow
OP YOU MUST RESPOND. THIS MYSTERY IS KILLING ME.
Seriously, did you shoot 900 rounds of 9mm with 7.5 gr of powder in them each?
PLEASE. I'M DYING HERE.
Seriously, did you shoot 900 rounds of 9mm with 7.5 gr of powder in them each?
PLEASE. I'M DYING HERE.
maybe he is too?
ok, bad humor, my bad.
but seriously, +1 on this. I have to know what happened here.... if you shot those and they didn't blow your gun up, what kind of gun did you shoot it out of? (i want one)
didn't happen to run any over the chrono either eh? imagine that, 2500 fps out of a 9mm lol
- Location
- Over the rainbow
They went so fast they hit the target before he left home for the range that day.
- Location
- Banana Republik of Kebekistan
I think Newbie was intimidated by some of the comments and deserted his own thread.
That is too bad because he asked for help. I just hope he does not injure himself.
Also too bad: I really did want to know how he measured...
That is too bad because he asked for help. I just hope he does not injure himself.
Also too bad: I really did want to know how he measured...
hometownhero
CGN Ultra frequent flyer
- Location
- Toon Town, Sk
Says right on the bottle of trail boss 9 oz. You would need a big jug for a pound of trailboss.
I think Newbie was intimidated by some of the comments and deserted his own thread.
That is too bad because he asked for help. I just hope he does not injure himself.
Also too bad: I really did want to know how he measured...
Bah just a little fun. If he got scared off from done good hearted joking around, that's just sad.
I kind of think he probably just doesn't spend his life on here (yet)
OK people. I bought a 3lb scale. I filled a 650g yogurt container with bullseye. 1lb comes about an inch from the top. Now to see how many hopper fulls I get. If anyone wants to see what a pound of bullseye looks like in the container, text me and I'll send a pic. 807-620-4208.
You would be very wise to pull that powder out of that container right away. Smokeless powder can eat away at some plastics... ask me how I know this....
On anther not, curious why you would bother doing that anyways? What benefit is it to know how much of an arbitrary container powder fills? It isn't a representation of your regular powder canister... why don't you just weigh how much powder you are putting in the hopper each time you use it, and weigh how much you pull out? That way you have an exact record of what you use.
But even then, why? Do you not have a scale that is accurate down to a tenth of a grain? If so, check your measure every ten or twenty rounds to confirm it is still throwing correctly, and load. You can't have powder disappear, and if you know how much goes into every round (you should) and you know how many rounds you have loaded (easy to count) then you also know exactly how much powder you have used, accurate to approximately 0.1 grains per round (I.e. you load 100 rounds so you can be sure you are accurate in your calculation to 10 grains, at the absolute worst case. Shouldn't even be off by that much if you are careful about setting up and using your measure.
Also, why a 3 pound scale? Again, you have a proper hand loading scale, yes? Just use it on increments up to its max capacity (i.e. if your scale can weigh 500 grains, then weigh out that much and do it 14 times, now you have exactly a pound, and don't have to mess with a 3 pound scale that may or may not be accurate... just a suggestion.
On anther not, curious why you would bother doing that anyways? What benefit is it to know how much of an arbitrary container powder fills? It isn't a representation of your regular powder canister... why don't you just weigh how much powder you are putting in the hopper each time you use it, and weigh how much you pull out? That way you have an exact record of what you use.
But even then, why? Do you not have a scale that is accurate down to a tenth of a grain? If so, check your measure every ten or twenty rounds to confirm it is still throwing correctly, and load. You can't have powder disappear, and if you know how much goes into every round (you should) and you know how many rounds you have loaded (easy to count) then you also know exactly how much powder you have used, accurate to approximately 0.1 grains per round (I.e. you load 100 rounds so you can be sure you are accurate in your calculation to 10 grains, at the absolute worst case. Shouldn't even be off by that much if you are careful about setting up and using your measure.
Also, why a 3 pound scale? Again, you have a proper hand loading scale, yes? Just use it on increments up to its max capacity (i.e. if your scale can weigh 500 grains, then weigh out that much and do it 14 times, now you have exactly a pound, and don't have to mess with a 3 pound scale that may or may not be accurate... just a suggestion.
You need to stop reloading right now, before you kill yourself. I'm not joking.
Get a good manual, and read it from start to finish. Then, re-read it. Make sure you understand the basics, especially the part about measuring out powder
I think, just a guess, but this might be a troll thread? Not sure someone can have done this and survived shooting their loaded rounds.
If it's a real legit thread, then my goodness stop loading.
I have a copy of a loading manual I'll hook you up with if you want but you gotta learn what you're doing before you blow up your gun BEST CASE, or kill yourself or someone shooting next to you, worst case (actually worst case is probably killing you AND the guy next to you ..... )
If it's a real legit thread, then my goodness stop loading.
I have a copy of a loading manual I'll hook you up with if you want but you gotta learn what you're doing before you blow up your gun BEST CASE, or kill yourself or someone shooting next to you, worst case (actually worst case is probably killing you AND the guy next to you ..... )
