.243 Ackley Improved

[B]

Please share your loads! I have a 1:8 twist semi-auto rifle on the way. Will be rechambering to AI immediately. I will definitely be focusing on the heavier end of the weight spectrum but all data will interest me.

 

[b72471]

243 Ack has a 40 degree shoulder, the standard 243 has 28 degree. So in a semi auto the standard will feed much smoother.
The Ack shoulder is OK in bolt actions but I would be hesitant to us it in s autos.

 

[B]

I realized that and abandoned the project. A fellow from the US had one up and running but after reading all the work he did to get there I lost interest.