US Department of Energy Selects Primary Arms PLx 1-8×24 Scope

The Department of Energy (DOE) has procured the Primary Arms PLx 1-8×24 scope for its security forces. PA makes a few reticle options, and DOE opted for the ACSS Griffin Mil M8 version. It is an illuminated mil-grid FFP design. 

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Bloke on the Range RECREATES HISTORY with John D. Pedersen's Cartridge Wax Process

A retarded blowback rifle extracts cases from the chamber while they are still under considerable pressure – over 35,000 PSI. Because of this pressure, the walls of the cartridge cases adhere strongly to the barrel’s chamber walls, while the head is forced back. Under normal circumstances, this would cause a catastrophic case head separation, therefore a successful retarded blowback weapon needs some kind of lubrication to free the case walls from the chamber and facilitate extraction at such high pressures.

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