I will be going to a model b high speed mill at the earliest opportunity but I am stuck with 20 rpm for a while. We are going to be changing domiciles in late June and I will be able to run the ball 24 hours without any problems as the the new place has a garage. Currently I can get in only about 2 hours at a time if I'm lucky, mostly one hour runs as I have to stay with mill the entire time outside.
The thought has also occurred to me cut a slot in the base of my current mill and install a larger drive wheel to triple the speed of the barrel.
I am really looking forward to having a garage again.
A couple of years ago I tried to capture a video of an open-air burn test - my photography skills are limited, but here it is -
http://s949.photobucket.com/user/cra...e7e32.mp4.html
The line on the left (labeled "G") is Goex 3Fg. The line on the right (labeled "H") was homemade, using dusting sulfur (Do-It-Best Hardware stock # 722367). The lines were about 5 inches long.
When I actually tried shooting/chronographing with the "dusting sulfur" BP, its velocity was within 3% of the Goex 3Fg velocity (equal weights of each powder).
Last edited by ofitg; 04-22-2014 at 02:35 PM.
Holy crapola oftig... You really need to get yourself one of them cheap long handled lighters.... I bet that scared the crapola outta ya when it poofed like that, lol..... You prolly jumped back so fast the speed test was over before you recovered...lol...
Might I also suggest a long THIN line of powder... About as thick a line as that match you were holding.. It should give you a better idea on speed that you can actually see...
Blessings, and protect them hands sir...
AG
Feedback link
http://castboolits.gunloads.com/show...ght=AlaskanGuy
Thanks for your concern, but this wasn't my first burn test, so I was not surprised....
My main disappointment was with the camera - the auto-iris didn't react quickly enough to prevent being blinded by the flash, and then the auto-iris recovered too slowly after the flash had ended.
If you use a longer thinner line, the camera will adjust easier as the flash will not be as bright, and will burn longer, allowing the camera to adjust... Also, pull the camera back a bit farther and use the zoom to bring it in close.. That will help the glare... Just my 2 cents....
Good luck..
Feedback link
http://castboolits.gunloads.com/show...ght=AlaskanGuy
That sounds like it might work. I haven't even tried to photograph a burn test for the past couple of years.... the only reason I tried to photograph that one, was to illustrate using dusting sulfur in BP. In spite of the photography/over-exposure problem, it can still be seen that the "dusting sulfur" BP continued burning for a brief moment after the Goex had been consumed.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |