NEMO firearms are optimized to use quality ammunition. Semi-automatic rifles perform differently than bolt action rifles and cannot handle hot loads. Do not use ammunition that exceeds maximum chamber pressure recommended by SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) The maximum pressure is 64,000 PSI, Piezo measured. You must check your chamber dimensions before loading ammunition beyond SAAMI length. There are many different manufacturers of ammunition. Different ammunition, bullet weights and powder combinations will cause varying degrees of accuracy and performance of the firearm.
Immediately discontinue use of ammunition that shows excessive pressure signs such as flattened primers, blown primers, pierced primers, excessive ejector marks or excessive extractor marks. **Some ejector marks and extractor marks are due to the semi - automatic design of the AR platform**
Only use quality, commercially loaded ammunition that is in good condition. Using corrosive, over-pressured, damaged, steel or aluminum-cased ammunition will void the warranty and if used, may cause personal injury or death.
Recommended ammunition: Medium & Large Frame AR’s
.308 Win Federal Gold Medal Match 168 grain.
.300 Win Mag Federal Gold Medal Match 190 grain.
6.5 Creedmoor: Hornady 147 grain ELD Match or 140 grain ELD Match.
There are many choices for Hunting Ammo. Be aware of how the ammo is functioning in your weapon as stated above. Adjusting your 4-position gas block (OMEN Watchman, Match & Recon) to a lower setting may be required for HOT ammo, adjusting up for short stroking ammo.