Pressures of "older" vs " modern" cartridges

Discussion in 'Reloading' started by Coues100, May 11, 2005.

  1. Coues100

    Coues100 Member

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    May 10, 2005
    Pressures of \"older\" vs \" modern\" cartridges

    Why do the "newer" carts. (.204 Ruger, WSM's) use higher pressures (62K), while the older carts., (7Rem. Mag., etc.) are held to a much lower pressure limit? Couldn't you load the 7Rem.Mag. up to the same pressure?? (62-65K)