Quick Answer
Yes, heat is a significant factor to consider when using a 6.5 for whitetails, particularly during the late season when temperatures are high and humidity is low. The 6.5's relatively high velocity and flat trajectory can magnify the effects of heat on the rifle's accuracy and bullet performance. This can result in reduced accuracy and increased bullet drop.
Heat and Ballistic Performance
The 6.5 Creedmoor’s high velocity of around 3,000 fps can cause the bullet to expand rapidly in hot conditions, losing velocity and accuracy. This is particularly true for bullets with a high ballistic coefficient (BC) like the 130-grain Hornady ELD-X, which can be affected by temperatures above 80°F (27°C). In these conditions, it’s essential to consider a bullet with a lower BC, such as the 140-grain Nosler AccuBond, which will be less affected by heat.
Managing Heat in the Field
To mitigate the effects of heat on your 6.5, it’s crucial to keep the rifle in a shaded area, especially if you’re hunting during the peak sun hours. Also, consider using a rifle with a good heat sink, such as a heavy barrel or a rifle with a good cooling system. Additionally, make sure to check the temperature and humidity levels before hunting, and adjust your bullet selection accordingly.
Bullet Selection for Hot Conditions
When hunting in hot conditions, it’s essential to select a bullet that can maintain its accuracy and performance. Look for bullets with a lower BC and a more forgiving design, such as the 140-grain Hornady InterBond. This bullet has a lower BC than the 130-grain ELD-X, but it’s still a very accurate and effective choice for whitetail hunting.
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