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Post by kevshell on Sept 9, 2024 19:11:03 GMT -5
Yessir
And I've had zero experience with trailboss so can't comment on that anyway.
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Post by messybear on Sept 9, 2024 21:56:00 GMT -5
I've not going through the exercise yet but I did have an idea in mind for myself. That is to seat and crimp a bullet in the case then turn it upside down and use a syringe or something like that to put water into the primer flash hole until it's flush with the primer hole not to the top of the primer cup. Then you could just weigh it that way. On another note I had found some rather accurate loads with far less than 100% using 231 or HS6. I totally believe in what you're saying with the Magnum powders loaded at 100% density or capacity I might have to try this. Just might work. Thanks! |
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Post by bigbore5 on Sept 10, 2024 3:08:07 GMT -5
You can't be sure there's no trapped air pockets in the brass that way.
My way also doesn't work on hollow base bullets for the same reason
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Post by northerngos on Sept 12, 2024 0:39:09 GMT -5
When speaking about density of charge, I am referring to the empty portion of the case with the bullet seated to the final depth it will be crimped at. That's 100% density. Compressed charges demonstrate how much over full the powder is compressed. To find 100%, I will use pure distilled water which has a specific gravity of one. Put a scratch in the side of the bullet just barely big enough for a little of the water to be forced out as it seats. Put some of the distilled water in the primed case and seat the bullet without crimping. Wait a moment for any water pressure to seep out. Dry the outside of the case and weigh it. Subtract the weight of the case and bullet. That's your capacity in grains of water. Your powder will have it's specific gravity weight in the data sheet. Multiply the powder specific gravity by your capacity in water. This will convert to the weight of a 100% capacity charge. I like this method a lot. Beats what I was doing, trying to measure base to crimp and trying to compare with a case filled with c amount of powder etc. |
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