Help with load data

[gcollins]

I have found some RVO-65 and some FN-Blank gun powder, can anyone please tell me where I might get some info???
Thanks
GREG

[wiljen]

I have found some RVO-65 and some FN-Blank gun powder, can anyone please tell me where I might get some info???
Thanks
GREG

RVO stood for River Valley Ordnance so I'd talk to them about load data. FN-blank is exactly that and is too fast for use in loads with any projectile. Strictly for use in blanks.

RVO contact info

RVOW.com
Tom@rvow.com
636-926-3076
3790 Harvester Road, Harvester MO 63303

[spqrzilla]

Blank powder can be dangerous stuff. I'd dispose of it carefully just to make sure no one tries to put any behind a bullet by mistake.

[gcollins]

Thanks guys,
I don't think RVOW is in busness anymore. There web site hasn't been updated since 2005, I called that number yesterday and no one answered.
I am great full for the help.
G

[Freightman]

Makes good fertilizer for your roses!

[wiljen]

RVO 62 and 70 were both lots of WCC860 or very very slow ball powder but RVO-65 may have been a lot of Wcc852. I would load a 30-06 or something with about that size case as if it were H380 and see what your velocity is then add to it until you start seeing pressure signs. I'm betting RVO-65 is a very slow burner and you will end up using H870 data for it, but it is safest to assume it is the fastest thing it might possibly be.

[gcollins]

Wiljen,
thank you, I will have to do a lot of trail and error, it does say on the jug that it is slow burning. Thanks to all for the help.
G

[gcollins]

I hope I can get the image of the data sheet to attach. The RVO-65 is sloer than H4831 and I think close Win785??
Maybe someone can help with what they think this powder is close to.:killingpc
Thanks
G

[Maven]

gcollins, RVO's data for 180 gr. jacketed bullets and WC 865 in the .30-06 is pretty close to the chronographed velocity I got with a 180 gr. CB and RVO-62 (aka WC 860). Although the relationship is NOT linear, I simply divided the velocity (1,953 fps) by the weight of the powder charge (53 grs.) to get a [very] rough indication of fps/grain of powder, which is 36 fps/grain of WC 865 and 37 fps/grain of WC 860. As long as you use a starting load and a chronograph to detrmine actual velocity, this will work, although it is less than perfect. In addition, in high pressure nominally .30cal. cartridges such as the .30-06, 7.62 x 54R, 7.5 x 55, and 8 x 57mm, using CB's weighing 165 gr. - 205 gr., I use 46 gr. - 48 gr. WC 860 + LR Mag. primers and have been completely satisfied with the results. If you have a 7.65 x 53mm Arg. Mau., I'd start at 43 grs. One additional point: We're often using slow milsurp powders in a manner not originally intended (WC 860, 872 and maybe 865 were used in the .50cal BMGcartridge). Thus, it isn't the cleanest burning to begin with and greatly reduced loads don't improve the situation at all, and may indeed create a dangerous situation. Case filling (or nearly so) loads are what you should be aiming for.

[wiljen]

It is a good bit slower than Win785 too. In the 30-06, 55gr of Win785 with a 180gr bullet gives almost 2500fps. The data from RVO shows obtaining only
roughly 2000fps from the same 55 grain charge.

Without knowing what barrel length their data is for, it is at best a guesstimate. It looks to be just slightly faster than H50Bmg or H870 based on the 300 Winchester #s. It is a very slow ball probably originally intended for the 50 BMG.

[gcollins]

Looks like I might of throwed my money away. I can't shoot the 30-06 anymore because of my back.The reason I bought it was I had been studying that my 243WSSM likes a slow burning powder and I have a load for the H4831 and thought it might make a good powder for that!! I know a guy that shoots a 50 cal Barret so maybe I can sell it to him.
Thanks for all the help!
G

[wiljen]

Hold up on that, it might just be fun in the 243 WSSM

using the RCBS cast boolit at (95gr) a full case should yield about 2400 fps. Not top velocity by any means, but would be a low recoil fun load and should have pretty low ES with Magnum primers and that short fat powder column.

[gcollins]

Howdy Wiljen,
That was what I was thinking, anyone can take factory specs and get a decent load, allthough the 243WSSM isn't a wild cat cartidge but I think of it as one. My plans were to find guys reloading that live close and sell them some of the powder for $10.00 a lb. Since this powder has very limited use I wouldn't use 8lbs in 50 years. If it was for the hazmat fee I would send you some to test! I have never understood why there is a Hazmat on small amounts of smokeless powder? I have allways kept a lot of gun powder becasue of all the **** that has been going on since 1985.
If you come up with any more info I would be great full.
Later
G

[mroliver77]

Heck Wiljen, why not a case full under a jacketed? It would give more resistance and maybe light the powder better. It could help to load jacketed to touch the rifling giving even more resistance. Whatcha think?
Jay

[wiljen]

Heck Wiljen, why not a case full under a jacketed? It would give more resistance and maybe light the powder better. It could help to load jacketed to touch the rifling giving even more resistance. Whatcha think?
Jay

That works fine too I would think. He had just mentioned cast shooting so I was following the path. I agree it should make for a fine reduced load with a case full and a 90-100gr Jacketed too.

[gcollins]

Hi Guys,
I called and talked to Jeff Bartlett last night. What a Super Nice Guy, he has a lot of knowledge about surplus powder. He knew the owner of RVO and had helped him out several times, the owner past away several years back and his wife tried to run the buiness and Jeff also went and helped her the buiness seems to not be open. Jeff knew all about the powders that RVO sold, of course has we have talked every lot is differnt, but Jeff has great knowledge of all the powder that RVO sold, he was of great help and gave me some good info on my powder. Hopefully I will get my hands on some mag. primers and start working on a load. As soon as i have worked up some of these loads I will post my finding.
Thanks to all opf you!!!!
G