Rio shotgun primers

JimmyJack

February 12, 2013 15:56

Did some housecleaning in my reloading room today and found 3000 Rio primers I forgot I bought. Any comments on them? I heard they miced out 3 or 4 thousands bigger than 209s. shouldnt be a problem unless it makes the pocket too big to go back to 209s.

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  charliemeyer007

  February 13, 2013 01:15

  http://www.ballisticproducts.com/Rio-209-Shotshell-Primers-1000_box/productinfo/RIO209/+
  
  Yep they look to be big.
  
  3000 ought to wear out 6 boxes of AA's

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  jce12ga

  March 09, 2013 16:56

  I have used the Rio and Cheddite primers both in the Remington unibody hulls,( STS, Gun Club, Nitro,...) with no problems. The European primers will mike out about _002-.003 larger than the American primers. Don't try to use the American primers in the hulls once you have used the European primers in them, fit may be loose. In a single shot or o/u it may not be a problem but in a pump or semi you could wind up with a loose primer in the action.
  
  I also made up a real easy tool to check primer fit in hulls. Take a spent US made primer and epoxy it to a short piece of 1/4 inch doweling. If you can't push the primer in over 2/3's to 3/4's of seating depth you are probably OK.
  
  Since my sources for the Cheddite and Rio's has changed, along with prices, I will probably be using the American primers again once my current supply of Cheddites are gone and I will probably toss the hulls. [^][:)]

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  peddler

  March 10, 2013 10:48

  So if I understand right Cheddite primers are .002-.003 bigger than Winchester primers?

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  jce12ga

  March 10, 2013 15:24

  peddler,
  
  The Cheddites and Rios are slightly larger but will still seat OK.
  Check with a mike or some good dial calipers to your own satisfaction.
  
  I have used them for several years with good results in everything from light 7/8 oz.target loads to 1 1/8 oz. 1450+ fps filed loads.

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