looking to get some opinions on a new prefit barrel in 223 remington favoring the 80gr bullet, few questions i have are, i see there are a few different chamberings, such as 223 match chamber and the 223 wylde ect, which would be the best chamber for bench shooting the heavy bullets. 7 or 8 twist. barrel length, 28 or 30 inch, looking into a barrel that has a proven track record for barrel life and accuracy, is a cut barrel a better choice over a button rifled.

Chet