Still Dicking About

 

1. I believe the 6mm Lee Navy is the parent for the mighty.220 Swift. The 6mm Lee Navy was definitely ahead of its time. However if the US had accepted the 280 British back in the 50’s the debacle over the 5.56mm would never have surfaced. Another example of the “not designed here” mindset.

   http://en.wikipedia.org/wiki/.280_British

   Posted by LyndonB       12/09/2010  at  05:03 PM  



2. I wonder if a nice 12-14” Contender (pistol) hunter barrel could be made for this? The slightly reduced (2-2.5K) muzzle velocity would still deliver some energy! Bet it would thump the ol’ hand a bit. But not as bad as my .45-70 barrel!

   Posted by ooGcM taobmaetS       12/09/2010  at  06:15 PM  



3. Nay, ‘twould nary thump atall!

   Posted by Drew458       12/09/2010  at  06:50 PM  



4. Well, hell! Lets get a barrel made and some brass punched out! Or would it be better to get dies cut to re-shape 6mm Lee Navy brass casing.

   You can call it the 6mm BMEWS! Um, how ‘bout the 6mm Short Cameltoe?

   OK - I’ll let you call it the .243 McGoo!

   Posted by ooGcM taobmaetS       12/09/2010  at  10:15 PM  



5. You’d have to look around to see if 6mm Lee brass was even made. Not sure if even Bertram carries it. It’s been dead a long long time.

   The reason that I do my wildcat cartridge development on the computer is that the real thing costs plenty. Getting a raw barrel for a Contender pistol or a Ruger #1 rifle or a Savage 110 rifle ( 3 firearms that are not difficult to change barrels on ) is only the beginning. There is lots of custom work involved and dies to be made etc. Then the proper testing equipment. Figure it at about $1200-$1500 per every cartridge you dream up, plus the cost and effort of transforming cases, and all the powder and bullets you’ll use up - at least 500 - in the testing and learning process.

   Posted by Drew458       12/10/2010  at  10:42 AM  



6. Well then redesign it around a cut down existing casing - like they did for the .357 sig (based on .40 s&w) or the 7mm TCU or 6mmTCU (both based on the .223 rem). That should save some money!

   Posted by ooGcM taobmaetS       12/10/2010  at  10:06 PM  

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