I have to build a custom rifle for school and was thinking of chambering it for 338-284. it is a winchester long action and I know why not just 338-06 but what fun is that I was planning on a 26 in. barrel cause you can always cut it shorter. But my thought was I could load the bullets out really far to utiize all the case capacity cause I could load them out to like 3.4 instead of 2.8. just curious if anyone has ny expirience with this round or what any info is appreciated.
Not a bad idea, definately something different. You may consider opening the bolt face for a 338 WSM wich would give you better performance while remaining relitavely short. Mag feeding is less than ideal with any 40 degree shoulder cartridge I've tried. JMHO.
you have a long action, use it. how about a 338/300Win Mag? putting a 338 on a long action with a 284 case seems like kissing your sister. why a 26" barrel with a 284 case and 338 bore? the minimum case for a 338 bore should be a WSM. would be a better project cause you'll have to alter the bolt face and put a different extractor while you're at it.