Military powder ?

Discussion in 'Long Range Hunting & Shooting' started by NONYA, Mar 29, 2009.

  1. NONYA

    NONYA Banned

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    I have several 8 pound kegs of rv0-62 powder and I was told it has the same or close to the same burn rate as 4350 per grain,does anyone know if this is true?i have looked through the powder chart for it and dont see it listed,it was made by river valley ordanace.Thanx
     
  2. steve smith

    steve smith Well-Known Member

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    1st. Surplus powders will not be listed on comercial burn rate charts.

    2nd. RVO didn't make the powder. They purchased it from a govt. surplus auction.

    3rd. RVO should have run tests to verify that its burn rate is approximately close to what they're selling it as.

    4th. 4350 what? There are 3 different powder manufactures that make a powder designated 4350 in their line up, each with different burn rates, and different charge weights for the same projectile. (Hodgdon H4350,IMR IMR4350, Accurate XMR4350). Which one?

    So, You need to check with RVO and find out which 4350 they are comparing rv0-62 to. Then consult published load data from that company. If RVO has done there homework they should give you something like " powder burn rate comparable to XXX4350, starting loads should be reduced by #% and work up slowly from XXX load data".
     
    Last edited: Mar 29, 2009

  3. NONYA

    NONYA Banned

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    Container says slow burning powder designed for magnum rifles.I have looked ,cant find any publishe data,cant contact the company that sold it.THAT is why I asked the question.IMR is the brand I was refering to.This char lists some surplus powders,guess they didnt get the memo...http://home.hiwaay.net/~stargate/powder/powder.htm
    [​IMG]
     
    Last edited: Mar 29, 2009
  4. steve smith

    steve smith Well-Known Member

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    Well, I did say comercial burn rate charts, which does not include those put together by individuals for their own use.

    OK, so RVO sold the powder to you as comparable to IMR 4350. That's a starting point.

    Did RVO give you any info as to the particular burn rate of RVO-62 compared to IMR4350. Something like "burns alittle faster than IMR4350, burns exactly the same as IMR4350, or a little slower than IMR4350". IF so that should dictate how you use IMRs load data. If they said it burns a little faster than IMR, then you would take IMRs load data and reduce the load by say 10% and work up from there. If they said it is exaclty like or slower than IMRs burn rate then use IMRs starting loads and work up from there. The whole idea here is to use comercialy availabe load data from a reliable source, such as Hodgdon, IMR, or Alliant to name a few. Once you have a place to start the rest is easy.

    Incase you don't know, Hodgdon, IMR, and Winchester load data can be found at http://data.hodgdon.com/main_menu.asp
     
    Last edited: Mar 30, 2009
  5. krlemas

    krlemas Active Member

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    I purchased RVO-62 and RVO-57 some years ago to use in my STW and 30-378 WBY but never worked up any loads but I do have the chart that they sent with the powder. I don't know how to attach them to this post but will send you the information if you give me your e-mail. RVO-62 is a slow powder designed for magnums and they list a max. load for the 300 win with a 180 gr. bullet as 86.0 gr with a vel. of 2793 and a max. load in a 7 Rem. Mag with a 175 gr. bullet of 82.0 gr. with a vel. of 2881. Hope this helps.

    Ken
     
  6. NONYA

    NONYA Banned

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    Thanx a bunch,please send it to LIFEALONGTHEDGE@YAHOO.COM gun)
    I inherited 80lb of this powder,Im going to find a good use for it!
     
    Last edited: Mar 30, 2009
  7. NONYA

    NONYA Banned

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    Thanx for the data,here it is for anyone else who may need it,should give me a good starting point to work on some loads for various "fun" rounds,I have enough of it to keep me shooting for a few decades.
    [​IMG]
     
  8. steve smith

    steve smith Well-Known Member

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    From the data you have there, the burn rate would more accurately be compared to surplus 5010. That stuff is very slow burning, much much slower than IMR4350.
     
  9. NONYA

    NONYA Banned

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    No need to compare it to anything when you have the load data provided by the manufacturer,started loading some test loads last night,will post results when we get some shot through a chrono.
     
  10. krlemas

    krlemas Active Member

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    You are correct when I purchased it I was thinking it would be a cheap replacement for H870 or H5010 in my STW, 338/378 Wby. and 30/378 Wby. Think I paid about $4.00 to $8.00 a pound back then.

    Ken
     
  11. steve smith

    steve smith Well-Known Member

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    Just out of curiosity and assuming that this is cylindrical and not ball powder, how does the the size of the individual grain compare to some cannister powders?

    The 5010 I have is about 50% larger in diamiter than powders like H1000, h4831, 4350, and about 75% larger than IMR Powders I've used.

    Just wondering if RVO-62 is just 5010 renamed.
     
  12. NONYA

    NONYA Banned

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    Its ball powder
     
  13. krlemas

    krlemas Active Member

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    RVO 57 and 62 are both ball powders and look similiar to H870 and when I finally get around to using them I will probably use a starting load similar to H870 or H5010.

    Ken
     
  14. liltank

    liltank Well-Known Member

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    Any news on the powder and results of shooting NONYA? Just curious.:D