I have been shooting a remington factory 338 lapua. I just recieved my custom 338 lapua with broughten barrel. I thought I would try and use the same load for both rifles but the completed rounds I have been using in my factory rifle won't fit in my custom rifle. Will full length resizing allow the bullet to fit in both barrels or do I need to have separate brass for each rifle? I have not tried FL sizing because I don't have a die for that.