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which powder is used

cowboy38231
I have a couple boxes of Winchester Supreme Elite 180gr XP3 30-06 that will not group in my Browning. I was thinking about pulling the bullets and using them to fireform some 30-338 cases. Does anybody know what powder is in the rounds? I hate to just throw away the powder from 35 rounds if I could use it also.
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Comments

4 comments

Date Votes
  • Ambrose
    Why would you need to fire-form .30/.338 cases? Just neck them down a little at a time until you get just a slight "crush" fit and load them with a load that you intend to use. Go ahead and use those bullets but ditch the powder--it's not worth the hassle.
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  • jonk
    You could get pretty close by weighing the powder charge and comparing to loads for that weight bullet. For instance if you have something like 48 gr it is probably close to 4895......and so on.

    However you'd really need to work up a load and it is a proposition only for the advanced handloader with at least a chronograph and a good understanding of pressure signs. Not worth it for 35. For a few hundred, sure.
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  • cowboy38231
    quote:Originally posted by Ambrose
    Why would you need to fire-form .30/.338 cases? Just neck them down a little at a time until you get just a slight "crush" fit and load them with a load that you intend to use. Go ahead and use those bullets but ditch the powder--it's not worth the hassle.


    Fire forming might not be needed, but from everything I have ever read or been told, it was advised. I just got finished running 100 new 338 brass though the FL die. It's about as easy as just resizing any brass in an FL die. This is a quote I read about a year ago on another forum "It is theorised that the extra expansion allowed by the brass stretching to fill the chamber actually smooths out pressure spikes, and causes better harmonics in the barrel" True fire forming may not be needed since I am just necking down instead of pushing the shoulder forward.

    I think I will use the bullets but dump the powder. No need in taking any chances.
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  • MIKE WISKEY
    "I think I will use the bullets but dump the powder. No need in taking any chances."..........+1, the factory loads may not have a powder that coresponds to anything available to reloaders. It makes good fertilizer
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