Does anyone have experience with a factory 338 Remington Ultra Mag and the 300 gr. berger bullet? Are you able to load this bullet to a C.O.L. that works through the magazine, and maintain 1 moa accuracy. I am looking for a load development starting point. How far are you seating this bullet off the lands? Any information regarding cartridge overall length , powder brand, powder charge,will be appreciated. If the 300 gr. berger won't work through the factory magazine, can you recommend a high BC hunting bullet that will? I have tried berger bullets in 3 other rifles with only 1 of the 3 shooting them accurately.My barrel and I thank you.