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M1A and Odd Headspace Question

5K views 34 replies 15 participants last post by  canmancan 
casebro,

That's a pretty stiff load of IMR 4895, especially in a service rifle.

"Anyway, brass fits headspace, loads of 43.5 IMR 4895, 168gr HPBT, Win LR or Fed 210 primers. Primers are flat, brass grows .020."

The Sierra manual lists 41.3 as a max load giving 2600 fps and the Hornady manual lists a "Service Rifle" max load is listed as 41.4 giving 2500 fps.
 
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