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Q&A · Hunting

Is a 150gr or 165gr load more effective for deer?

April 5, 2026

Quick Answer

A 165gr load is generally more effective for deer, particularly at longer ranges, due to its increased kinetic energy and better expansion characteristics.

Choosing the Right Bullet Weight

When it comes to hunting deer with a 308 Winchester rifle, selecting the right bullet weight is crucial for success. In this case, the 165gr bullet offers several advantages over the 150gr load. Firstly, the increased weight of the bullet translates to higher kinetic energy, which is essential for delivering a clean and humane kill. With a 165gr bullet, you can expect a muzzle velocity of around 2700-2800 ft/s, producing a kinetic energy of approximately 2000 ft-lbs. In contrast, the 150gr bullet will produce around 1800 ft-lbs of kinetic energy at the same velocity.

Understanding Expansion Characteristics

Another critical factor to consider when choosing between these two bullet weights is their expansion characteristics. The 165gr bullet, with its slightly larger diameter, is designed to expand more rapidly upon impact, creating a larger wound channel and increasing the chances of a quick and clean kill. This is particularly important when hunting larger deer, as the 165gr bullet can help to ensure a quick and humane end to the animal’s suffering. In contrast, the 150gr bullet may not expand as rapidly, potentially resulting in a less-than-ideal wound channel.

Practical Application

In practice, the choice between a 150gr and 165gr load will depend on your specific hunting scenario and the type of deer you’re hunting. If you’re hunting smaller deer at close ranges, the 150gr load may be sufficient. However, if you’re hunting larger deer or longer ranges, the 165gr bullet is likely a better choice. It’s also worth noting that the 165gr bullet may be more forgiving in terms of shot placement, allowing for a slightly larger margin of error. Ultimately, the decision comes down to your personal preference and the specific requirements of your hunting situation.

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