SIG SAUER SIGM400 Rifle - Manual (Page 45)

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3.3 Loading the Rifle
1. Ensure the safety lever is in the “S” (SAFE) position;
2. Insert the magazine and check that it is properly seated;
3. Bolt forward: Pull the charging handle back fully and release; or
4. Bolt locked open: Depress bolt catch fully to release bolt.
WARNING:
DO NOT LOAD A RIFLE WITH A HOT CHAMBER BECAUSE A ROUND
MAY “COOK” OFF (i.e., a round may detonate (fire) unexpectedly
just because it is exposed to the heat of the rifle’s chamber).
FIG 24 MAGAZINE BEING INSERTED
11SIG455_M400MiniManual.indd 45 8/2/11 3:58 PM