Temp changing POI (Hunting)

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Poke-E

Poke-E

Member
Sep 18, 2023
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Lake Charles LA
So I have read other members discussing the effects of temp changing in the performance and POI of their Airguns and completely understand that aspect . My question is this. I sit in a stand while hunting that is heated. The little heater I use it amazing and will run you out of the stand because it gets so warm. How do I zero my rifle in, in the cold, and still have it be accurate when it is in the warm stand shooting into the cold air? I am shooting a Texan 457 with an AAO upgrade installed.
 
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???.. my gas ram gun is temp sensitive big..

I was duped in getting a gas ram because it solved all this ..lol. Heck it's worse then any springer I got .. far worse .. gamoigttemppoi.jpg

Now if I don't adjust the sights it will hit dead on every temp poi as long as it's the same temp . Lol

I id zero in the warmer afternoon 70 to go hunt in the colder morning and would sourly miss but I'd check it back in the afternoon when the day was warmer 70 again and it was pretty on target . Well. ....

Got smart and set up and shot at a long paper and was low as like above but as the day got warm and I got back to my zero temp it was back in the bulls .. lol

Crazy ..
 
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Sooo crazy! I actually just edited my original thread. I am shooting a text in 457 with an African Air ordinance upgrade get in it. I was thinking about taking the gun from inside to side in outside and use one of my electric socks to keep the bottle warm so hopefully it would be more accurate In the stand.. I know that the barrel being cold it will change the harmonics, and the spring being colder will stiffen it up! There are so many variables that I am just trying to figure it all out!!Little did I know when I started this air gun journey that I would have to be a, scientist, engineer, meteorologist, m Machinist, physicist and all sorts of other stuff to figure all of this out, or at least that's what I feel like!!😂🤣😂🤣
 
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I would think (gives me a headache tho) that since you're in a controlled environ like the blind, that the scope will not have the same POI changes that can occur when shooting in the morning in cold clime (40°) versus shooting in the afternoon when the sun has heated up the scope and is now hot (90°).
It stands to reason that if you zero your scope from the blind and the blind is basically the same temp, then I don't see that the POI should change (?).
My thoughts only, I'm certain that someone with more knowledge will chime in.

mike
 
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It can also be way more complex than that.

There are lots of things happening in an air rifle. There has been very little real engineering in air rifles. All materials expand and contract with temperature. You can make that work for you or against you. Most companies have put no effort into even thinking about their rifles ...beyond simply getting them to eject a projectile at a certain speed.

Your problem could be many, many things.
 
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thomasair said:
It can also be way more complex than that.

There are lots of things happening in an air rifle. There has been very little real engineering in air rifles. All materials expand and contract with temperature. You can make that work for you or against you. Most companies have put no effort into even thinking about their rifles ...beyond simply getting them to eject a projectile at a certain speed.

Your problem could be many, many things.
Click to expand...
Exactly. The Texan isn’t exactly a precision instrument. Call it a fancy pneumatic muzzleloader
 
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You must be hunting for something small, clear your mind, and adjust for the difference if it is that big of a thing; most of this is the mind overanalyzing. Your mind can adjust for difference if you have the faith to do it.
Breathe in , breathe out, adjust, and have the faith you can do it...Clear thoughts lead to good shots:unsure:
 
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Poke-E said:
Sooo crazy! I actually just edited my original thread. I am shooting a text in 457 with an African Air ordinance upgrade get in it. I was thinking about taking the gun from inside to side in outside and use one of my electric socks to keep the bottle warm so hopefully it would be more accurate In the stand.. I know that the barrel being cold it will change the harmonics, and the spring being colder will stiffen it up! There are so many variables that I am just trying to figure it all out!!Little did I know when I started this air gun journey that I would have to be a, scientist, engineer, meteorologist, m Machinist, physicist and all sorts of other stuff to figure all of this out, or at least that's what I feel like!!😂🤣😂🤣
Click to expand...
@Poke-E I was hesitant to respond here because I cannot answer the "why?" What I do is gather DOPE during different seasons, temps, and weather conditions. Then I can reference my DOPE on a day that I want to go hunting with what I have in my notes on a day with similar temp, pressure, humidity, and altitude. Since it's always a good idea to check your zero before going out to hunt, what I have learned to do is to test my DOPE against current weather conditions. If old info holds true in current weather conditions then that's useful DOPE. If not, then I am prompted to undertake the sometimes tedious task of finding out why there are differences.

In sum, I suggest starting by testing your DOPE shooting at a target using holds (or turret settings) that you've notated. From there you should have an idea on how to determine the next logical step for hunting conditions on that day.
 
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PasadenaMike said:
Exactly. The Texan isn’t exactly a precision instrument. Call it a fancy pneumatic muzzleloader
Click to expand...

PasadenaMike said:
Exactly. The Texan isn’t exactly a precision instrument. Call it a fancy pneumatic muzzleloader
Click to expand...
Maaann ... My Texan is super accurate.. It is a powerhouse and 100% dead on 100% of the time.
 
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Ezana4CE said:
@Poke-E I was hesitant to respond here because I cannot answer the "why?" What I do is gather DOPE during different seasons, temps, and weather conditions. Then I can reference my DOPE on a day that I want to go hunting with what I have in my notes. Since it's always a good idea to check your zero before going out to hunt, what I have learned to do is to test my DOPE against current weather conditions. If old info holds true in current weather conditions then that's useful DOPE. If not, then I am prompted to undertake the sometimes tedious task of finding out why there are differences.

In sum, I suggest starting by testing your DOPE shooting at a target using holds (or turret settings) that you've notated. From there you should have an idea on how to determine the next logical step for hunting conditions on that day.
Click to expand...
@Ezana4CE that is great advice... I actually thought about that but was not sure how accurate that would be with slight variation in temperature. I guess I'm just going to have to spend a little time during different temperature situations to figure out what. to dial on my scope for my holdovers.
 
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Poke-E said:
@Ezana4CE that is great advice... I actually thought about that but was not sure how accurate that would be with slight variation in temperature. I guess I'm just going to have to spend a little time during different temperature situations to figure out what. to dial on my scope for my holdovers.
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@Poke-E It's not a cure-all, but I think it's a good place to start. I refer to this as validating my DOPE. If you use the same holds/turrets settings from a day with similar temps and weather conditions at the distance(s) you plan on shooting from, I'd say you're in good shape and you can trust that information. I still like to test the info, especially since it may have been recorded the year before. Testing it also helps to memorize or keep pertinent info fresh in my mind so that I spend less time looking at a DOPE chart and I can focus more on what's going on around me.
 
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Ezana4CE said:
@PasadenaMike Muzzleloader? Are we still talking about the Airforce Texan here?
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lol yes. I mean they aren’t exactly designed to shoot a wing off a fly. I know they’re accurate but not surgical. if I’m wrong please correct me and if they’re that super accurate what distance are we talking ?
 
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Poke-E said:
Maaann ... My Texan is super accurate.. It is a powerhouse and 100% dead on 100% of the time.
Click to expand...
I believe they are as well but how accurate? And what distance is acceptable for accuracy? To me a canon like that as long as it’s minute of deer at 50 I’m good. I own a Condor and Talon p. As long as they’re minute of ground squirrel at 25 they’re good For my needs. Guess it’s what you expect
 
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Ezana4CE said:
@Poke-E It's not a cure-all, but I think it's a good place to start. I refer to this validating my DOPE. If you use the same holds/turrets settings from a day with similar temps and weather conditions at the distance(s) you plan on shooting from, I'd say you're in good shape and you can trust that information. I still like to test the info, especially since it may have been recorded the year before. Testing it also helps to memorize or keep pertinent info fresh in my mind so that I spend less time looking at a DOPE chart and I can focus more on what's going on around me.
Click to expand...
@Ezana4CE I understand 100% and agree. What would your suggestion be on how often to check dope and verify things? I feel sometimes I get in the habit of trying too hard and realize I am doing nothing but clicking my scope what seems to be non-stop trying to be more accurate. Any suggestion on how to avoid this and simply double check?
 
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