FYI, the issue US military " sniper" round is the M118LR. It' s the 175 gr. SMK loaded at 2600fps.
I stand corrected. Civilian police snipers tend to use the 165 grain match grade bullets.
Also, the Marines use a bedded McMillian A4 stock. The Army M24 uses a HS Precision stock with aluminium block. It is not otherwise bedded in the stock.
The use of aluminum " bedding" block is considered " bedded in the stock" .