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Normal Topic question about 40-50 SS brass (Read 48 times)
bullshop
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question about 40-50 SS brass
Yesterday at 9:51pm
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Still don't have my rifle so cant yet find out on my own.  Prepping some brass made from 303 Brit and wondering if the necks will need to be thinned. 
The necks at the case length for the 40-50 at 1.85" are below where the shoulder was on the 303 case so getting pretty thick.
You folks shooting .408" to .410" diameter bullets are you having to turn case necks from cases made from 303 Britt or 30-40 Krag?
  
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vbull
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Re: question about 40-50 SS brass
Reply #1 - Today at 6:03am
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I shoot a .38-50 with cases made with both .303 and .30-40 brass.  The .303 brass has thinner walls than the .30-40
I shoot the .30-40 brass unsized and the bullet is a slip fit.  The .303 brass required a slight sizing to get the bullet to slip fit with just a slight tension, otherwise it would not remain in the cartridge when inverted in the ammo box.
Be aware they both leave a slight internal ring when blown out where the shoulder is formed in the parent brass.  I don't find it on all the brass but enough to say so.  Only a couple thousands of a ridge about 1/2" below the case mouth.
  
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