browning eoropean A bolt barrel thread

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Hi guys Im new to this forum and look forward to future help and topics.Anyone know the barrel thread pitch on a Browning Eoropean a bolt and if they are easily removed for rebarreling,I heard they may be glued in and quite impossible to remove.

 

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Ok,guys an easier one.What barrel thread is on a Regular Browning A bolt,my guess is that both barrels are of the same thread.