Tomahawk674
Member
A while ago I posted some videos of me shooting, along with 16X slowed down versions, taken with my $150 Cannon. (That's one heck of a camera for that price I have to tell you.
http://www.youtube.com/watch?v=tCMMVRaPXLc
Well, I had an idea: let me see if I can figure out the speed of the bullet. What I did was find the frame at which you see the target hit, then find the frame BEFORE the gun goes off, figure out the time and divide it over the distange. The targets were about 12 yards out.
The 1861 Uberti navy gave 960 fps with 17.5 grains of 777 fffg, with a lubed wad and 80 grain .375 lead ball.
Well, you may say that method is extremely inaccurate. I though so too. But notice in the video there's me shooting a S&W 9mm with a 4 inch barrel. I did the exact same method and got 1066 fps, shooting 115 grain 9mm fmj. That's kind of a close value isn't it?
Either way I was intrigued, because 777's official fps numbers from their site are low all around, which doesn't make sense if it's supposed to be 15% stronger than real bp.
CAP AND BALL REVOLVER POWDER MEASURE SETTING TRIPLE SEVEN FFFG
36 cal. 1851 Navy Steel Frame 15gr. 20gr.
375 Hdy. RB Ox-Yoke W/Wad 662 832
44 cal. 1858 Rem. Steel Frame 20gr. 25gr.
454 Hdy. RB Ox-Yoke W/Wad 536 763
44 cal. 1860 Army Steel Frame 20gr. 25gr.
451 Spr. RB Ox-Yoke W/Wad 524 592
45 cal. Ruger Old Army 30gr. 35gr.
457 Hdy. RB Ox-Yoke W/Wad 845 987
http://www.youtube.com/watch?v=tCMMVRaPXLc
Well, I had an idea: let me see if I can figure out the speed of the bullet. What I did was find the frame at which you see the target hit, then find the frame BEFORE the gun goes off, figure out the time and divide it over the distange. The targets were about 12 yards out.
The 1861 Uberti navy gave 960 fps with 17.5 grains of 777 fffg, with a lubed wad and 80 grain .375 lead ball.
Well, you may say that method is extremely inaccurate. I though so too. But notice in the video there's me shooting a S&W 9mm with a 4 inch barrel. I did the exact same method and got 1066 fps, shooting 115 grain 9mm fmj. That's kind of a close value isn't it?
Either way I was intrigued, because 777's official fps numbers from their site are low all around, which doesn't make sense if it's supposed to be 15% stronger than real bp.
CAP AND BALL REVOLVER POWDER MEASURE SETTING TRIPLE SEVEN FFFG
36 cal. 1851 Navy Steel Frame 15gr. 20gr.
375 Hdy. RB Ox-Yoke W/Wad 662 832
44 cal. 1858 Rem. Steel Frame 20gr. 25gr.
454 Hdy. RB Ox-Yoke W/Wad 536 763
44 cal. 1860 Army Steel Frame 20gr. 25gr.
451 Spr. RB Ox-Yoke W/Wad 524 592
45 cal. Ruger Old Army 30gr. 35gr.
457 Hdy. RB Ox-Yoke W/Wad 845 987
