I am guessing it is like the 30-06 to 308 Win sleeves? They push in and will stay, or you add locktight and it stays semi-permanently.
I have heard that they come out on the darndest occassions...
Ed
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Edward Tinker
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Co-Author of Police Lugers - Co-Author of Simson Lugers
Author of Veteran Bring Backs Vol I, Vol II, Vol III and Vol IV
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