Hey folks, long time lurker first time posting. Thanks for all the great info over the years! I'm looking to build/have built a primarily long range target rifle in 6.5-284 (Rem 700 base) and I've been reading a bunch about it lately. The nearest reputable smith that can tune my action and install the barrel that I've selected in a reasonable amount of time suggests the Winchester chamber for this cartridge over the Norma chamber. I've found a number of posts regarding the differences between the two but I'm honestly having a hard time wrapping my head around how it will affect me and my shooting and reloading. I'm planning using 142 SMKs and will probably shoot 600-800 yds max at this point. Want to use lapua brass, redding dies (S bushing for neck). So, norma chamber if I anticipate longer bullets into the lands, correct? How would the winchester chamber affect what I can and can't do reloading or shooting wise? If there is any additional info I can provide to better quide this post, please ask. Thanks!