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Hi, Kevin:
   That .62 cent Loonie really hurts, doesn't it.  I saved considerable coin by buying moulds from Steve Kochak this summer compared to the big Western Canadian mailorder outfit.  Mind you, he had a pile of Lyman stuff that he'd got from a bankruptcy and it's all gone now.   [email protected]

   Your point of impact shift is typical of a heavy bullet in a light gun. I'd estimate your velocities at 1000 fps and 1800 fps. The slow bullet stays in the barrel longer and the gun has more time to rise in recoil.  There's also barrel whip which is unpredictable, at least outside a well equipped labratory.  My .35 Remington has an aburpt shift in point of impact at certain velocities and it varies with the powder.  So the trick is to select a powder that doesn't give you the shift anywhere close to your preferred velocity.  Getting a plinking load and a full snort hunting load to hit the same place might be a bit tricky.

  Can't figure why more people don't put their state or province in their profile.  A new caster was posting about his troubles a while back and an old-timer who lived 20 miles away gave him a holler.  He spent an afternoon casting with the old boy, learned a ton and came home with some goodies that the old boy gave him a real deal on.  

Bye
Jack
 

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7,804 Posts
Hi, Kevin:
     I don't have a .45-70 so I can't recommend any loads, but lots of the Forum members do, so you should get some good advice shortly.  The same applies to Lee moulds.

Bye
Jack



<!--EDIT|Jack Monteith|Feb. 19 2002,10:17-->
 

· Inactive account
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7,804 Posts
Hi, Kevin:
    The weight of a bullet that a given mould casts depends on the alloy used.  The mould maker claims mould xxxxxx will cast xxx grains with alloy X.  Lyman uses their Number 2 alloy which is 90% lead, 5% tin and 5% antimony.  IIRC, RCBS uses linotype, 84-4-12.  Stocker's alloy is about 94-3-3.  Now tin and antimony weigh a lot less than pure lead, so a mould speced with linotype is going to cast a heavy bullet with Stocker's alloy. Final diameter also varies with the alloy, since antimony expands when it solidifies.
An example from Lyman.
Lead - 276 grains - .3773"
WW - 272 grains - .3779"
#2 - 264 grains - .3785"
Lino - 256 grains - .3789"

Bye
Jack
 
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