Quick Answer
For big game hunting in the Rockies with a .308 caliber rifle, consider loads with controlled expansion bullets, such as 150-165 grain projectiles, for optimal penetration and expansion. These weights offer a balance between expansion and penetration, making them suitable for larger game. A muzzle velocity of around 2,500-2,700 feet per second is recommended.
Bullets for the Rockies
When hunting in the Rockies, it’s essential to choose a bullet that can effectively expand at the slower velocities often encountered at higher elevations. For a .308, consider bullets from manufacturers like Berger, Barnes, or Hornady. These bullets have been designed with controlled expansion in mind, ensuring they expand consistently at lower velocities.
For example, the 155-grain Hornady SST or the 150-grain Berger VLD Hunter are excellent choices. These bullets offer a balance between expansion and penetration, making them suitable for larger game like elk and moose. When using these bullets, aim for a muzzle velocity of 2,500-2,700 feet per second to ensure optimal expansion.
Muzzle Velocity and Range Considerations
When hunting at higher elevations, it’s crucial to consider the effects of reduced air density on bullet performance. At higher elevations, bullets tend to lose velocity more quickly, which can impact their expansion and penetration. To compensate for this, it’s essential to use a heavier bullet or a more efficient propellant to maintain a higher muzzle velocity.
Aiming for a muzzle velocity of 2,500-2,700 feet per second will help ensure that your bullet expands consistently, even at longer ranges. At this velocity, the 150-165 grain projectile will have enough kinetic energy to penetrate deep into larger game, while also expanding to a diameter of around 0.6-0.7 inches, which is suitable for quick and humane kills.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.