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Thread: H4227 delayed ignition in large case?

  1. #41
    Boolit Master TurnipEaterDown's Avatar
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    Quote Originally Posted by Rapier View Post
    I have found that the 4227s both, like to be positioned right on the primer and held there, for accuracy. If you allow either of them to be loose in a large capacity case, the shots will scatter. ...
    There is a factual reason for that observation, and it is powder ignition consistency.

  2. #42
    Boolit Master
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    Quote Originally Posted by uscra112 View Post
    4227 isn't a ball powder, is it?
    the 4227 I have is little cylinders - taint ball powder

  3. #43
    Boolit Master

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    I got decent accuracy from my 300 Weatherby magnum using 2400.
    Try 1 gr. of Dacron to hold the powder on the primer.
    Last edited by dale2242; 03-16-2023 at 11:20 AM.

  4. #44
    Boolit Grand Master
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    About 15-20 years ago I bought a custom barreled Ruger #1 in 32-40. It came with about 40 rounds or so for ready loaded ammo that were recorded as having 16 point something grains of H 4227 behind a 200 gr bullet and a Federal Match primer, IIRC. Great performance in all, in fact probably about the best fixed ammo in 32-40 I ever shot. I don’t think primers are your problem.
    Froggie
    "It aint easy being green!"

  5. #45
    Boolit Master

    Hamish's Avatar
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    7mm Mag is a pretty big case to be using 2400 or 4227, IMHO.

    If I *had* to use something at less than about 80% of case capacity, it would be 700X or Unique. Too many powders are supposedly good for small amounts in big cases, but produce weird results if not helped to the back of the case. I don’t like tipping the rifle to make sure no weirdness happens, but then, I’m still a fan of WC860,870,872 for anything .303 or bigger. And Jeff still has WC870 at $7.50 a pound.

    I agree with Froggie, it’s not the primer,,,,
    More "This is what happened when I,,,,," and less "What would happen if I,,,,"

    Last of the original Group Buy Honcho's.

    "Dueling should have never been made illegal in this country. It settled lots of issues between folks."- Char-Gar

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check