Hi I am looking at a 17 HMR I found one that is a NON E Receiver and one that is a newer E Receiver. I have the option to buy either one. Which one would be the better way to go? Any comments would be greatly appreciated. Is one better that the other? Does the newer E Receiver have improvements over the other? Also, I noticed that the newer E Receiver barrels are straight they do not have the step in the barrel like the older NON E Receivers. Is one more rigid than the other?

Thanks