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Thread: Smoky loads with H4350 and .243

  1. #1

    Smoky loads with H4350 and .243

    Hi All,

    I made up some reloads for the very first time today with H4350 in my .243 The loads appear to function correctly and have a very mild recoil (not that a .243 is punchy anyway) but it is really quite smoky. I'm talking a discernible cloud of smoke. At first I put it down to the Napier burning off from the mod, but it continued through all 8 test rounds I fired.

    I inherited the powder and I've had it 2 months. Could it be the powder degrading?
    .243 Weatherby Vanguard Synth /.223 BRNO CZ527 Synthetic
    .22LR CZ 455 Synth / 12G Stoeger 2000 / 12G U/O Bettinsoli
    12G Zoli SBS / .410 unknown Italian

  2. #2
    Quote Originally Posted by widu13 View Post
    Hi All,

    I made up some reloads for the very first time today with H4350 in my .243 The loads appear to function correctly and have a very mild recoil (not that a .243 is punchy anyway) but it is really quite smoky. I'm talking a discernible cloud of smoke. At first I put it down to the Napier burning off from the mod, but it continued through all 8 test rounds I fired.

    I inherited the powder and I've had it 2 months. Could it be the powder degrading?
    Why not try a couple with out the can?? oh the shock horror of it!

    It would eliminate the Moderator as the source tough.

  3. #3
    Quote Originally Posted by Brithunter View Post
    Why not try a couple with out the can?? oh the shock horror of it!

    It would eliminate the Moderator as the source tough.
    How very dare you Sir! I will; but seriously I don't use a lot of the VP90 stuff in there.
    .243 Weatherby Vanguard Synth /.223 BRNO CZ527 Synthetic
    .22LR CZ 455 Synth / 12G Stoeger 2000 / 12G U/O Bettinsoli
    12G Zoli SBS / .410 unknown Italian

  4. #4
    Eight shots the can was just coming up to temperature Did the smoke stop play or was it an accurate load?

  5. #5
    a member and pal on this site cleaned his out and with the first 15 shots were like a battle at Rorke's drift and acrid pure white and very fluffy !!

  6. #6
    I get the same with WD40 in my ASE Utra - Love the smell of napalm in the morning!

    Smoke & stink is better than the can rusting away methinks.

    Maybe we need to experiment with some other rust prevention fluids to see if there are any not so smelly. - Or might try sticking the can in an oven to dry it out before firing - Just need to do it when SWIMBO isn't at home!

    Ian

  7. #7
    Lack of light and rain stopped play. Glad that others have had the Rourke's Drift experience (I like that ). I'm not too sure I'll get out with the rifle before Xmas now.
    .243 Weatherby Vanguard Synth /.223 BRNO CZ527 Synthetic
    .22LR CZ 455 Synth / 12G Stoeger 2000 / 12G U/O Bettinsoli
    12G Zoli SBS / .410 unknown Italian

  8. #8
    I tried imr4350 in my 243 and found the same - no mod either. Grouping non existent as well.

  9. #9
    4350 is a fairly slow burning powder and not one that I'd have thought would suit a .243?
    I suspect that the powder may still be burning after the bullet has departed the barrel which could cause smoke. Is it a short barrel?
    look at using a faster powder.
    MS

  10. #10
    Quote Originally Posted by Heym SR20 View Post
    I tried imr4350 in my 243 and found the same - no mod either. Grouping non existent as well.

    Perhaps reading a few loading manuals might help select the appropriate load in future .

    Both IMR 4350 and H 4350 are excellent powders in the right application ........................ the 6.5x55 certainly likes it in my experience. It's well suited to the 270 Winchester and .280 rem and .280 AI along with the 25-06 and 30-06 cartridges. I have only ever loaded a few .243 Winchester rounds so cannot really comment on that but it does quite well in the 6 mm Remington according to my hand loading notes.

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