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  #1  
Old 08-05-2022, 1:36 PM
papaboomboom papaboomboom is offline
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Default Tac powder temp sensitive?

Howdy! Anybody find Tac powder to be temp sensitive? Haven't run into pressure problems(yet) but I notice groups opening up with sun climbing up. Shooting at burro cyn, temp up to 90 with some humidity...just like some opinions, thanks
While we're at it, opinions on weighed vs thrown charges, please

Last edited by papaboomboom; 08-05-2022 at 1:50 PM..
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Old 08-05-2022, 4:10 PM
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Typical symptom of ball powder,for that reason I prefer a good stick powder,such as Varget & N140.
In my experiance using ball(w748&blc2) powder, groups open up starting in the 70degree range.
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Old 08-06-2022, 4:10 PM
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Here's an interesting video for you.

https://www.youtube.com/watch?v=BB-BM_BDVAI
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Old 08-06-2022, 6:32 PM
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Quote:
Originally Posted by papaboomboom View Post
Howdy! Anybody find Tac powder to be temp sensitive? Haven't run into pressure problems(yet) but I notice groups opening up with sun climbing up. Shooting at burro cyn, temp up to 90 with some humidity...just like some opinions, thanks
While we're at it, opinions on weighed vs thrown charges, please
Raton New Mexico when they host a nationals people that shoot there once will figure out a morning load and a afternoon load.
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Old 08-10-2022, 1:16 AM
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Raton New Mexico when they host a nationals people that shoot there once will figure out a morning load and a afternoon load.
Why not just keep your rounds in a cooler?
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Old 08-10-2022, 9:54 AM
kcstott kcstott is offline
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Why not just keep your rounds in a cooler?
You can't have a cooler on the firing line. This is nationals and they play by very strict rules to eliminate any unfair advantage.

At best you can keep it in a cooler in the shade then stage for your relay but as the ammo warms up now you will have a greater temp swing then if you just left it alone and shot your string at ambient. Remember, Nationals are decided by X count. Top level shooters are cleaning the targets and scored by X count. These guys are shooting within 1/2 MOA at 1000 yards. any flicker of a change in the load will show up on the target. Long range is about consistency and controlling the inconsistent.
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