Yet another 280AI Cooper

stubblejumper

CGN Ultra frequent flyer
Rating - 100%
69   0   0
Location
Camrose
After trying out one of my Cooper Jackson Hunters in 280AI,a hunting partner decided to order one for himself.After it arrived from Prophet River, we mounted a Zeiss Conquest 3.5-10x44 scope with the Rapid Z 600 reticle, loaded up some test loads using the 140gr TTSX,IMR 4831,and R-22,and waited for warmer weather.On Thursday,he finally tested the rifle,and it produced groups averaging right around 1/2" using IMR 4831.The R-22 loads averaged closer to 1".Now we just have to wait for spring to do the final load development.
 
Luckily,I am immune to fancy wood.:D
Buying the synthetic stocked models allows me to spend less per rifle,so that I can own more rifles.:)

The rifle my hunting partner bought is a Jackson Hunter,so it also wears a synthetic stock.He is also immune to fancy wood.:D
 
My hunting partner is immune to fancy wood,but the 1/2" groups certainly impressed him.Until he fired his new Cooper,he had never fired a 1/2" group in his life.After firing two 1/2" groups in a row,he was all smiles.:)
 
"final load development"?...a half inch and you're looking for more?:cool:...I'd be done:rolleyes:,..but them I'm lazy when it comes to working up loads...I really should buy one of those Coopers....:)..saw one in a 280AI Excaliber at the gunshow today....nice.
 
"final load development"?...a half inch you're looking for more?...I'd be done,..but them I'm lazy when it comes to working up loads.

It's more a case of testing the loads in warmer weather to check for pressure signs.
 
ahh...good plan...did you chrony the loads?

We will do that in the warmer weather,when the chronograph is not as finicky.My own rifle uses the same loads,and produces 3140fps with the 140gr TTSX,but the colder weather will likely drop the velocity a bit.
 
Back
Top Bottom