First off, I wanted to say this forum has been a great resource since I first started handloading 6 months ago. My question is this. My gun is a 300 win mag and the max length in my Nosler Reloading manual is 3.340 (Might be off?), but with an OAL gauge I measure an OAL of 3.585 to get a 200gr Partition to get it to the lands. Is it safe to load past the listed max length? If so, how much of a jump should I start with? What lengths would I load to find the best jump for my gun?