whats all the fuss about the 6mm

dantheman

May 10, 2003 18:31

I hardly ever heard mention of the 6mm until very recently I read an article in "predator or varmit" hunting magazine (i can't remember which)and all of the sudden I keep reading and hearing how awesome of a round it is. How does it compare to the .243 or 7mm.08. Just curious

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  dakotashooter2

  May 10, 2003 18:41

  The 6mm is very similar in balistics to the 243 Win. In most bullet weights the 6mm probably has about a 100 FPS advantage. Actually if I recall the 6mm, previously known as the 244 rem, was developed before the 243 (as a possible military cartridge?)but Rem. dropped the ball and Win. hit the public market with the 243 first. The 244 was then pushed as a varmint caliber and because of its twist did not handle the heavier bullets as well as the 243. It was eventually reintroduced as the 6mm with a change in twist but just could never catch up to the 243.

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  ohioghog

  May 10, 2003 18:50

  the current predator magazine article was the "6mmppc" cartridge primarily used by benchrest shooters and fur takers. the 6mm cartridge, which i use exclusively for groundhog hunting is not the fastest or flattest shooting round. the attraction is the energy it maintains downrange and the ease of reloading. look at the ballistic tables and you will see the big difference in energy/ft.#'s as opposed to the 220 swift, 22-250, 223. the 6mm is comparible to the .243, with a tad more powder charge. im sure others will jump in and give you more info on this and other cartridges.
  
  6mm rules[:p][:p][:p]

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  Sunray

  May 10, 2003 21:21

  Hi. The .243 Win is a 6mm. The 6mm Remington is a bit faster than the .243 Win. About 100fps. Brass and ammo isn't as easy to come by compared to the .243 Win. The .243 Win is a necked down .308 and with proper loads is a good deer/bear/antelope round. So is the 6mm Rem., but it's a totally different case. A bit longer. The 6mm PPC uses the same bullet but with a very different case. Much smaller. There's a 6mm Bench Rest too. And the new, but not yet available, .243 WSSM, which is a modified 6mm PPC. Given that, which 6mm are you asking about?
  Any 6mm allows you to use the same rifle for varmints and medium sized game with different loads.

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  Iconoclast

  May 11, 2003 03:25

  And I would add two cents to Sunray's excellent answer - anything a 6mm can do, a .25-06 can do better (except for BR shooting) at the cost of greater recoil. Virtually any good rimless cartridge in the .244 - .257 range is extremely versatile and useful for most American game and varmint hunting.

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  Mobuck

  May 11, 2003 04:13

  The 6mm has an advantage over the 243 in powder capacity and has a longer neck. I have loaded for and used both. The 6mm makes a better round for use in pumps or autos because the longer length helps feeding. If I were building a sporter from a mauser or springfield I would make it a 6mm for the same reason. The 6mm will work through the magazine better.
  
  Mobuck

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  nononsense

  May 11, 2003 06:24

  "And the new, but not yet available, .243 WSSM, which is a modified 6mm PPC."
  
  The WSSM's are not "modified 6 PPC's" at all and no where even close. They may have a shape similar to the PPC but other than that there is no relationship. The cases are derived from the WSM's which were derived from either the 404 Jeffery or the heavily modified .348 Win. depending on who's history you want to believe. These cartridges require a magnum boltface (.535) to function not the .445 boltface of the PPC and have a case capacity of 58 grains (approx.) of water to the top of the case mouth not the 32 grains of the PPC. These are large cases compared to the PPC.
  
  Regards.
  
  www.shortmags.org

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