Speaking to temperature change affecting your scope there are other things to be considered that can be affect your impact due to temperature. When the air is 80 degrees ift is thinner than at 60 degree or lower. The cooler air will affect the pellet causing more drag in cold air than warm air this can cause an impact shift, especially with 20 FPS air rifles. Also the air in the rifle becomes more dense in cold weather, The metal in the air gun can also shift in temperature change, For example; the gun has the sun hitting directly on one side of the rifle causing it to expand more on one side than the other, espacily on free floating barrels, moving the barrel off centerline. So as DeadEye noted that some shooters cover the rifle with a car window shade cover to insulate it from the sun which can cause the gun to shift the impact point. To me this is a great precautions.
How interesting! I saw a champion shooter for Air Arms explaining this to Steve of AEAC at a competition. At this high level of competition everything comes into play. Excellent video brother. God bless you. 🎯
Your measurement "wheel" is a long strip of brass, which has a large thermal coefficient of expansion. So it gets longer when the temperature is hotter, and thus moves where the marks are vs how many degrees the actual focus knob has been turned. This has a real effect, whether or not it is the overall factor I do not know. I'm in Charlotte and just added and air rifle to my centerfire shooting and may come check out your matches.
Congrats on that big trophy there dead eye. Question: where did you get the teardrop for your scope wheel? I modified some UTG wheels to fit on my Athlon scopes, but I really need teardrops, and can’t find anything for less than a silly whole pile of money. Any ideas for me? Thanks
Hey thanks! Actually, I made my focus wheel mod out of a piece of brass from my local hardware. Check out my UA-cam channel- I made a video about that mod a while back. And I would appreciate you subscribing! Thanks.
When you set your distance , is that to a specific magnification,,, only ? Or is them ranges specific to one magnification,, if you get what I’m saying ,,, thanks Shane
Speaking to temperature change affecting your scope there are other things to be considered that can be affect your impact due to temperature. When the air is 80 degrees ift is thinner than at 60 degree or lower. The cooler air will affect the pellet causing more drag in cold air than warm air this can cause an impact shift, especially with 20 FPS air rifles. Also the air in the rifle becomes more dense in cold weather, The metal in the air gun can also shift in temperature change, For example; the gun has the sun hitting directly on one side of the rifle causing it to expand more on one side than the other, espacily on free floating barrels, moving the barrel off centerline.
So as DeadEye noted that some shooters cover the rifle with a car window shade cover to insulate it from the sun which can cause the gun to shift the impact point. To me this is a great precautions.
How interesting!
I saw a champion shooter for Air Arms explaining this to Steve of AEAC at a competition.
At this high level of competition everything comes into play.
Excellent video brother.
God bless you. 🎯
Your measurement "wheel" is a long strip of brass, which has a large thermal coefficient of expansion. So it gets longer when the temperature is hotter, and thus moves where the marks are vs how many degrees the actual focus knob has been turned. This has a real effect, whether or not it is the overall factor I do not know. I'm in Charlotte and just added and air rifle to my centerfire shooting and may come check out your matches.
This stuff is amazing to me.
Thanks brother. Excellent point!
I love this sport.
If I didn't work so many hours. I would be doing this. 👍
Nice video Philip 👍
My Sidewinder changed last week when the temp went from 80s to 30s. So no idea the exact temp. This is Jack from Louisiana
Congrats on that big trophy there dead eye. Question: where did you get the teardrop for your scope wheel? I modified some UTG wheels to fit on my Athlon scopes, but I really need teardrops, and can’t find anything for less than a silly whole pile of money. Any ideas for me? Thanks
Hey thanks!
Actually, I made my focus wheel mod out of a piece of brass from my local hardware. Check out my UA-cam channel- I made a video about that mod a while back. And I would appreciate you subscribing! Thanks.
Scott Broom
Like subscribe ring the bell😎👊🏾 I made a teardrop scope wheel if this is what you are describing you want?
When you set your distance , is that to a specific magnification,,, only ? Or is them ranges specific to one magnification,, if you get what I’m saying ,,, thanks Shane
My distances are set at 16x. That's the max magnification I am allowed in AAFTA Hunter class. I leave it at 16x for all shooting positions. Thanks!
DeadEye cheers buddy Shane uk 🇬🇧
How earth did you get that much spacing between 45 n 55 with a 16 mag scope