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Cold Weather Testing

The temperature warmed up to 38F this afternoon so I spent some time testing bands and plinking outdoors from 20 yards. All testing was with ¼" steel ammo and a 32" draw length. It was interesting to note that after 10-12 quick shots at 38F, none of the speeds changed from the averages. I thought the bands would warm a bit and speeds would noticeable increase.

Prior to testing, the bands were left outside in the shade for an hour in the measured 38F temperature. They felt cold to the touch. Speed numbers were quite consistent in the cold temperature with numbers for each band within a 5fps range.

Band = 0.50mm orange GZK

Measured band thickness = .020"

Cut = 6 7/8" x 5/8" x 1/2"

Speed/Temperature = 213 fps at 70F

Speed/Temperature = 202 fps at 38F

Band = 0.50mm orange GZK

Measured band thickness = .020"

Cut = 6 3/4" x 9/16" x 1/2"

Speed/Temperature = 231 fps at 70F

Speed/Temperature = 223 fps at 38F

Band = 0.40mm Precise Apple Green

Measured band thickness = .016"

Cut = 8" x 11/16" x 9/16"

Speed/Temperature = 224 fps at 70F

Speed/Temperature = 213 fps at 38F

Band = Unknown orange band

Measured band thickness = .022"

Cut = 8" x 3/4" x 1/2"

Speed/Temperature = 222 fps at 70F

Speed/Temperature = 214 fps at 38F

The unknown orange bands were precuts from an AliExpress shipment. I was expecting them to place far behind the other bands in the cold test but they did fine.

A while ago I tested some .55mm Precise Yellow and .030" Amber Latex in 70F and 42F temperatures. The bands were cut slightly stronger for 5/16" steel ammo. The Precise lost 12fps and the Amber Latex lost 9fps with the temperature drop.

It seems that an 8-12 fps decrease in speed is typical for most quality latex flatbands when going from a room temp of 70F down to an outdoor temp of 38-42F. This seems to be true for a mid-range draw length of 32" with a mild draw weight. I'm not sure how a short draw length or butterfly draw would compare. Also, stronger drawing bands for 3/8" and heavier ammo might give different results.
 

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Good stuff Buddy!
 
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