Thanks again Gube:
anks to Gube!!!!
Sorry guys, computer change, and I can't find any of my old stuff even tho I downloaded it to a portable hard drive, and downloaded it to the new computer..
so here is the results I got when I tested it previously in A 204...
204 Ruger and Blue Dot
Rifle used: Ruger 77 Mk 2
Barrel: 22 inches
Primer used: Winchester Small Pistol
Bullets used: Hornady 32 and 40 grain V Maxes.
32 grain Vmax:
5grs: 1588 fps
6grs: 1849 fps
7grs: 2012 fps
8grs: 2300 fps
9grs: 2472 fps
10grs: 2709 fps
11grs: 2890 fps
12grs: 3012 fps
13grs: 3212 fps
14grs: 3372 fps
40 grain Vmax
6grs: 1734 fps
7grs: 1966 fps
8grs: 2197 fps
9grs: 2321 fps
10grs: 2546 fps
11grs: 2709 fps
12grs: 2874 fps
13grs: 2892 fps
14 grs: 3140 fps
Starting charges were determined based on work with the 223 cartridge.
Both bullet weights charges were stopped at 14 grains, as going higher didnt show any real increase in velocity but did show pressure signs starting.
Accuracy was what I have come to expect with Blue Dot.
Small pistol primers were used based on availability.. this was done during a nationwide primer shortage. Small rifle primers would not show any potential increase in velocity or pressure, based on experience with the 223 case.
As always a prudent handloader will work up to max charges, to make sure they are safe in their rifle.
This is presented as for academic review only, as I can not be responsible for other people’s handloading procedures.
If the lighter charges are used, I recommend charging a case and seating the bullet first, before going onto the next cartridge as this will eliminate the potential of a double charge.
With a max of 14 grains per case, a pound of Blue Dot will yield powder for 500 rounds of ammo.
Seafire
February 2008.
once again.. as big thumbs up to Gube..
anyone using this data, remember it only proved safe it my rifle... so you do so at your own risk... and please remember, if you are wanting to use the max loads listed, then please work up to that level...and also don't exceed it... I've gone further, and saw no velocity increase...Blue Dot will plateau...
