Hi:

I have been learning long range shooting on my own since I started late last year and have been caught several times asking myself questions that I can't get an easy answer to.

One of those questions is the effect of changing ammo temperature on accuracy and precision. I store my ammo in my home in a cool (68-72 degrees F), dry, dark area. However, since I live in the Northeast, this means that in the winter I am moving it from inside to outside at the range where it can be very cold (today is 15 degrees F, for example).

What effect does this have on precision? I would assume that its a good idea to wait for the ammo temperature to equilibrate to the ambient temperature before starting any sort of shooting in which I am attempting to measure accuracy and precision (more so precision).

I'd like to hear what you guys have seen in your experience, as well as any tips to mitigate potential detrimental effects on accuracy and precision.

Thanks!

Mike