290 SWC .431 dia data help please

[The_Montanan]

I'm looking for load data for this paticular 290-gr SWC (not Gas Checked) .431 dia bullet for my Ruger SBH SS .44 Mag, 4 5/8th"

Desired Powder - Unique

Desired FPS - 800 to 1000

Any help will be appreciated

[runfiverun]

8-8.5gr should get you about 850-875.
this is also in the max pressure range for the 44 mag,
to get more velocity you will have to go to 2400 18 gr would be about max
and your next step would be h-110/w-296.

the 2400 is about all i would do with ww alloy.

[kg42]

Alliant's online reload guides give 7.2gr/ 965fps/ 34,800psi for a 310gr LSWC, with a 1.600 oal, in a 5.7 in bbl.

http://www.alliantpowder.com/

kg

[The_Montanan]

Alliant's online reload guides give 7.2gr/ 965fps/ 34,800psi for a 310gr LSWC, with a 1.600 oal, in a 5.7 in bbl.

http://www.alliantpowder.com/

kg

Now the question is using this load what fps do you think it will give for a 290-gr SWC that is 20 gr less wt as it should give a faster fps shouldn't it?

I'm heading out and pic me up some 2400 as Elmer Keith used this powder as well for his 240 and 255 SWC's as well. 2400 is suppose to be the king of powders for these cast bullets.

I also understand there is some good data using 231 and 296 powder as well.

[runfiverun]

231 and 296 are at opposite ends of the burn spectrum.
you should pick up a little speed with the lighter boolit, but unless you are using a chronograph.
what you get and what the book says are usually two different things, i use the books for pressure data.
and the chrono tells me what my velocities are.
i don't use it to work up to a velocity, unless it is one i know is safe and want it to regulate
my sights with a new powder,or new batch of powder.

with cast boolits i like to get the right fit first, then see what velocity i can get.
working up in increments watching for leading and accuracy along the way.
what good is a boolit going 2000fps if you can't hit anything with it?
or control the gun for more then 1-2 shots.
or if you have to clean it every 6 shots?

the 2400 is a good powder choice you may see some powder flakes in the bbl
this is fairly normal with 2400.
but start at a lower level and work up watch your groups and for leading in the bbl
your pistol will tell you what will work with your boolit combo.
it takes a bit longer but once you got it there is "your load"
in my 44 it is 19.3 gr 2400 over 250gr g/c. it is what it likes.

[The_Montanan]

Picked up the 2400 and got some of the 290-gr SWC loaded up, starting with 13.5 gr.