How much does temperature and humidity effect trajectory?
The reason I ask is yesterday I shot a 3 shot group at 300 yds all within about an inch and a half. I then dialed in the dope for a 600 yard 24"x36" steel target and shot 3 more. They didn't group great but I could consider that shooter error as I am fairly new at shooting distances over 200 yards. They were all within about 8 inches of each other and roughly the center of the target. I went back out today and shot with the same dope and was shooting about 2.5 MOA high on my first 3 shot group. The temperature I would say was about 10-15 degrees warmer the second day. I'm not sure about humidity but it didn't feel that much different. I guess I'm looking for an explanation for the variation between the two days. Could it have been the atmospheric differences or could have been the ammo was from two different boxes?
The reason I ask is yesterday I shot a 3 shot group at 300 yds all within about an inch and a half. I then dialed in the dope for a 600 yard 24"x36" steel target and shot 3 more. They didn't group great but I could consider that shooter error as I am fairly new at shooting distances over 200 yards. They were all within about 8 inches of each other and roughly the center of the target. I went back out today and shot with the same dope and was shooting about 2.5 MOA high on my first 3 shot group. The temperature I would say was about 10-15 degrees warmer the second day. I'm not sure about humidity but it didn't feel that much different. I guess I'm looking for an explanation for the variation between the two days. Could it have been the atmospheric differences or could have been the ammo was from two different boxes?