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.223 rem rechamber to .223 AI
ChetStafford
Member Posts: 2,794
What will have to be done to a Rem 700 sps varmint in .223 rem to rechamber it to .223 AI?
I found a deal on this rifle and kind of want something a little different.
Will the barrel have to be set back?
I found a deal on this rifle and kind of want something a little different.
Will the barrel have to be set back?
Comments
Yes the barrel has to be pulled and set back:
To assure that even the shortest standard cartridge brass will fit the Improved chamber snugly, without shoulder support, the standard headspace must be reduced by .004" from that of the factory, or SAAMI, specifications. This now causes the standard SAAMI headspace "GO" gauge to not fully enter the chamber. Thus, the standard "GO" gauge becomes the "NO-GO" gauge for use in Improved chambers! As an example, the standard .250 Savage "GO" headspace gauge in the .250 Ackley Improved chamber will not allow the bolt to close. This is required because the manufacture of pliable brass cartridge cases cannot hold the neck-shoulder juncture point exact, and we do want the standard cartridge to fit rather snugly at this point in any Improved chamber.
Best.