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zoomie · June 23, 2012, 02:50 PM

You don't shoot 243 Win through an AR-15. For other 243 cartridges, the bolt depends on the parent cartridge. The 6x45 mentioned above is based on the 223 Rem, so it's the 223 Rem bolt. The 243 WSSM is based on .300 WSSM, and uses a larger bolt face.

June 23, 2012, 02:50 PM	#8
zoomie Senior Member Join Date: January 23, 2006 Location: GA Posts: 1,862	You don't shoot 243 Win through an AR-15. For other 243 cartridges, the bolt depends on the parent cartridge. The 6x45 mentioned above is based on the 223 Rem, so it's the 223 Rem bolt. The 243 WSSM is based on .300 WSSM, and uses a larger bolt face. Last edited by zoomie; June 23, 2012 at 03:02 PM.