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Old April 30, 2009, 03:21 PM   #15
James K
Join Date: March 17, 1999
Posts: 24,141
The Commission rifle would use the same headspace gauges as any other 8x57 rifle, including the Yugo M48 and K.98k.

Those were pretty well made and I have seen several with replacement bolt heads that headspaced fine. So have the headspace checked and make sure you need work done before doing anything.

If the receiver is marked "S", you should be able to fire any 8x57 load with no problem, but considering the gun's age, I would stick to US commercial ammo or equivalent handloads.

The story is complex but the only thing done to those rifles to let them fire the "S" bullet was running in a chamber reamer to expand the chamber neck. They didn't rebarrel or re-bore them, the larger bullet apparently gave no problem at all.

Jim K
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