What’s the best rounds for deer? When i first started hunting, it was simply the cheapest rounds 10mm ammo available in my rifle good quality. Little did I know at the time, there are many more factors to consider, beginning with the topic.
When most seeker are going for rounds, the first thing that usually comes to mind is the accuracy of the topic. Nobody will claim benefit of accuracy. Probably the most accurate bullets are those that provide a flat flight. This is typically offered by long nosed bullets. Boat-tail bullets are very popular and are usually used for match shooting, which speaks to its accuracy. Round nosed bullets can also be accurate, but are usually heavier which lends to a more arched flight.
Another factor to consider is the bullets ballistic efficiency. An efficient topic maintains more of its speed and energy right to its target. This is important, because a topic that seems to lose energy slowly will fly more shapely right downrange and hit with greater velocity producing a higher energy impact. Long, sleek, boat-tail bullets typically have the highest ballistic efficiency.
Ballistic efficiency is important, but so is the performance of the topic on impact, or critical performance. This is a measure of how the topic behaves on impact. It is usually desirable for a topic to open on impact to manufacture a larger twisted, however, it must also stay together enough to sink into. This is the trade off. A topic that opens quickly my be perfect for deer at long ranges but would blow apart and offer little puncture on an elk shot at close range. An ideal topic for elk would hold together and would sink into deeper, but would barely open up on a faraway deer at lower speed.
All these factors are important, but as long as we, the seeker, can use our rounds effectively. Probably more important than trying every different type and combination of ammo is to settle on two or three different cartridges and shoot and practice more. Two or three different loads should cover the different types of hunting most of us do. And by changing ammo less, you can focus more on honing your shooting skills. After all, when the moment of truth comes up, your confidence in yourself is more important that what topic you are shooting.