chamber reamer

gknives

July 14, 2013 17:03

Does anyone know of someone who rents chamber reamers seems like in the past I heard of this but can't remembwer who? Any info is appreciated. Terrill

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  gknives

  July 14, 2013 17:03

  i have a finish reamer that is either 7-08 or 7x57 how do i tell which one it is? it is not marked the front measures.284 i dont know where to measure next ?

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  llama

  July 14, 2013 17:29

  Shoulder angles and such

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  dcs shooters

  July 14, 2013 17:48

  Here's 7mm-08 specs,
  
  
  
  Bullet dia for 7mm-o8 is .284
  
  Here's 7X57,
  
  
  
  7X57 bullet dia is .285
  
  It looks like you will have to go by case dimensions.
  
  Hope these help.

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  rufe-snow

  July 14, 2013 18:15

  Using a dial caliper measure the length between the base and the case mouth. The 7mm will be approximately .0200 longer @ 2.244, whereas the 7-08 will be 2.045.

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  nononsense

  July 15, 2013 05:48

  gknives,
  
  Measuring the case length will get the right answer. The reamer should be scribed with a mark at the length of the base of the case. The top of the neck or mouth of the case should be obvious. rufe-snow's dimension is off by a decimal place, it should read (0.200)
  
  If all else fails, the neck length on the 7mm-08 is 0.294" while the 7x57 neck length is 0.377" which is similar to the 6mm Remington neck.
  
  Best.

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