Remington 9 1/2 magnum primers

Discussion in 'Reloading' started by matt_3479, May 9, 2010.

  1. matt_3479

    matt_3479 Well-Known Member

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    Why do i never really hear of too many people using them. I picked up 100 of them today for my 7mm and 300. wsm.
     
  2. Loner

    Loner Well-Known Member

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    From the primer heat charts I have seen they list the 9 1/2's as the coldest.
    1 fed, 2 win 3 cci then 4 rems. I remember seeing an actual high speed camera
    flame test on them so it wasn't conjecture. Google it and you'll find it.
     

  3. Fitch

    Fitch Well-Known Member

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    I don't know. Might be availability. They have been harder to find around here for the last couple of years but I have a box of them to try in my 7mmMagnums. I also have a box each of Fed215, CCI250, and WLRM to try in them.

    I use the Rem 7-1/2 primers in my .17 Remington because they are better in a high pressure cartridge like the .17R. I have two bricks of them which is probably a lifetime supply.

    Fitch
     
  4. Buffalobob

    Buffalobob Writers Guild

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    I found the R 9 1/2 to be better under max load conditions than the Fed 215s in a 7mm Wby. You do not always get the most uniform ignition with the hottest primer. Sometimes less is best.
     
  5. ovastafford

    ovastafford Well-Known Member

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    I use them in my 7mm and .264. Havent tried anything else so far even though I have cci's and winchesters also.
     
  6. Fitch

    Fitch Well-Known Member

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    Thanks for the data. Here is another interesting read on primers: http://www.chuckhawks.com/primers.htm

    And some testing: http://www.the-long-family.com/primer_study.htm

    Fitch
     
    Last edited: May 10, 2010
  7. Bravo 4

    Bravo 4 Well-Known Member

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    I had some laying around and started using them in my 7mag when the Federal 215M's got hard to find. It seems to like them.
     
  8. johnnyk

    johnnyk Well-Known Member

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    matt,
    I use them quiet a bit in the 7Mag and .300WinMag. After the CCI BR2 they're my second choice. I found them at a good price at a gun show in Raliegh, N.C. a few years back and bought 3000 of them and 3000 of the 9 1/2's. I haven't bought Federal primers in years and only one 100 pk of WLR in the past 10 years.
    I have used them and found some accurate loads in a couple of .22-250's, .243's and the .25-06 (Sendero) I gave to my son. I have tried them in several more calibers that I have loaded for friends and associates. I'll probably try them in the 6.5x284 I recently acquired also. They work fine for me. JohnnyK.
     
  9. Doug in Alaska

    Doug in Alaska Well-Known Member

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    My .338 Win Mag and 7mm Rem Mag love them. Wouldn't use anything else in these two rifles.
     
  10. Clark

    Clark Well-Known Member

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    Someone died 15 years ago.
    I have his reloading stuff.
    I just used, for the first time yesterday, his No 9 1/2 Rem large rifle primer in a 45/70 case with .5 up to 1.5 gr Bullseye behind a 145 gr cast bullet.

    They all worked just fine.
     
  11. Booney

    Booney Well-Known Member

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    I use them in my 300 and 7mm rum and love em.
     
  12. J E Custom

    J E Custom Well-Known Member

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    I don't know .

    I use a lot of them on the intermediate magnums (70 to 90 grains of powder capacity) because
    they give me better SDs than the Fed 215s or other primers that are hotter than the 9 I/2
    rem.

    The heat range of different primers can greatly effect the performance of any given load and
    should allways be considered.

    J E CUSTOM
     
  13. seidersjoden

    seidersjoden Well-Known Member

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    Hi,

    I am looking for some primers, I know this is an odd request but could I get your phone # or email, I would like to chat?

    Thanks

    Joden
     
  14. Doug in Alaska

    Doug in Alaska Well-Known Member

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    This is a very good article as I'm not sure everyone is aware that the Remington 9 1/2M and Remington 9 1/2 are different primers.