6.5mm Grendel vs 6mm ARC
The 6.5mm Grendel vs 6mm ARC comparison covers two AR-15 cartridges designed for extended range performance. The 6mm ARC (103gr ELD-X at 2800 fps) retains 895 ft-lbs at 500 yards, while the 6.5mm Grendel (123gr SST at 2580 fps) delivers 881 ft-lbs. Drop at 500 yards measures 52.6 inches for the 6mm ARC and 63.9 inches for the Grendel. Recoil stays mild for both: 8.3 ft-lbs for the 6mm ARC versus 9.7 ft-lbs for the Grendel. The Grendel has more ammunition options and a longer track record. The 6mm ARC shoots flatter and arrived with military backing from Hornady and the DOD. Both fit standard AR-15 lowers with a barrel and bolt swap. Performance varies with ammunition selection and barrel length.
Ammunition Parameters
6.5mm Grendel Parameters (Self-Defense Load)
6mm ARC Parameters (Self-Defense Load)
6.5mm Grendel vs 6mm ARC Ballistics Chart
Comparing bullet drop at various ranges between 6.5mm Grendel and 6mm ARC.
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6.5mm Grendel vs 6mm ARC Energy Comparison
Comparing the muzzle energy and energy retention at various distances between 6.5mm Grendel and 6mm ARC.
6.5mm Grendel vs 6mm ARC Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between 6.5mm Grendel and 6mm ARC at self-defense distances.
Self-Defense Ammunition Penetration
Notes:
- FBI standard for optimal penetration is 12-18 inches in 10% ballistics gel
- Our penetration data is calculated using mathematical models based on sectional density, velocity, and expansion factors. While not actual gel tests, our calculations have been validated against manufacturer test data and provide reliable estimates for comparison purposes.
- Actual results may vary depending on clothing barriers and other factors
6.5mm Grendel vs 6mm ARC Recoil
Comparing recoil energy and impulse between 6.5mm Grendel and 6mm ARC.
6.5mm Grendel Recoil (Self-Defense Load)
6mm ARC Recoil (Self-Defense Load)
Notes:
- Recoil calculations based on bullet weight, velocity, powder charge, and firearm weight
- Recoil energy indicates the felt force when firing the weapon
- Recoil impulse represents momentum transfer during firing
- Actual felt recoil can vary based on grip, stance, and firearm design
6.5mm Grendel vs 6mm ARC Velocity
Velocity decay from muzzle to 500 yards for 6.5mm Grendel and 6mm ARC.
6.5mm Grendel vs 6mm ARC Average Cost
Comparing cost per round and training affordability between 6.5mm Grendel and 6mm ARC.