3030 loads

[Lloyd Smale]

need someone with a ballistics calculator or some experience to give me an idea for a 3030 load using a 120 cast gas checked bullet out of a 16 inch barrel at 1500 fps and another at 2000. I have about any powder you could suggest so have at it.

[winchester243]

Fitting question for you 3030th post. Can't help you with your question, just noticed your post count and had to comment. :)

[Lloyd Smale]

hell that is pretty cool. It sure wasnt intentional.

[HollandNut]

Gimme a few minits .. Will see what my calculator says

[Molly]

need someone with a ballistics calculator or some experience to give me an idea for a 3030 load using a 120 cast gas checked bullet out of a 16 inch barrel at 1500 fps and another at 2000. I have about any powder you could suggest so have at it.

Lloyd,

You can just use the loading data for any 120 or 125g jacketed bullet. Yeah, there will be some slight differences between jacketed and cast, but you'll find more difference between two comparable rifles. As far as hitting the exact velocity you want, just calculate your charges (DOWNWARD!!) by proportion. For example, say you have data that says use 30 grains of powder XYZ for 120g jacketed to get 2500 fps. 1500 fps / 2500 fps = 0.6 times 30g = 18g for 1500 fps. Simple, but it's surprisingly accurate. About as good as you'll do without a chronograph anyhow.

But one word of caution!! ALWAYS calculate downwards from published data. NEVER calculate up! You can turn your rifle into a bomb quicker and slicker than greased lightening. But downward is always safe.

Molly

[HollandNut]

using the 311576 as the boolit , I got a couple here for ya ..

IMR3031 30.8 1940 fps 32.9 2072 fps

H322 30.8 2109 fps

[onceabull]

Lloyd: They Used Their #311359.115 gr nominal ,fired from 14" T.C.,,7.5 gr Unique gave 1303 FPS, 11.4 got 1740FPS. And Rx7,20 gr for 1656fps, 30.5 gr for 2039 fps... There are 3 other powders listed. PM if needed... Enjoy, :) Onceabull

[IcerUSA]

I had a gentleman that was into shooting some of the older military rifles , 6.5 Swede being his joy , he said to take the starting load for a condom bullet and multiply by 85% and you would have a start load for a boolit of the same weight , of coarse we know some powders ain't compatible with is formula but overall I have had good luck using this with my weapons , 3031 , 2015 , H4895 , just a few that come to mind all seem to do well with boolits. I would also look in the Lyman Cast book but I'm not sure if they go with that lite of a boolit .

Keith