Hey guy's, Thought I'd quiz and get direction from some of you who are knowledgeable and experienced. I'm working on my first load development for a 300 RUM. I've only been handloading for about 1 yr. Played around with 7mm-08, now working on my RUM. Heres where I'm at. I'm shooting 210 gr. Berger, Nosler cases, Retumbo. I do have a Berger manual. After reading the manual, and hearing from numerous people how difficult VLD's can be to get shooting well, I first did a bullet seating depth test per Berger instructions with a starting load of 88 gr Retumbo. With once fired brass shoulders bumped .001, it shot every seating depth better than I had expected at 200 yds., but at .010 off lands did a little bit better. Dont remember off the top of my head, but it was a little under 1" at 200. Heres where I can use direction. I am planning to shoot a ladder test starting at 88 gr, and working up in .2 gr increments to 92, which is the max in Berger manual. I only have access to a 200 yard range without driving a long distance, and paying for range time. Last week I took 5 rounds of virgin never fired brass loaded 88 gr to get centered on target for my ladder test. Took 2 rounds to center at 200, and my next 3 printed in at just over 3/4" at 200. The unfired brass has about .012 headspace. This is a good sign to me, I think, though I would not have expected the new brass to shoot that well. Will the 200 yd ladder test described above tend to tell me anything at 200 yds? I've not chrono'd anything yet. I've got one, never used it, and dont know if it would be very accurate. Its a pro chrono. The conditions where I shoot, I dont believe would be very good for chrono'ing. The sun is always down at the target end of the range. The gun is a custom build on a blueprinted 700 action. 1:10 twist #4 Hart barrel. No break, I take the beating. May add a break later, but I dont know. I dont like them, too loud. I'm all ears, and open to any direction any of you guy's might have. Being of little experience, I need suggestions. Should I continue with the test, or see what that starting charge does at distance? Should I do more testing differently than I've planned? I fully expected to be battling this load out, but things seem to be going well to this point. Could it be an anomoly, or am I on the right track with a bullet that my gun seems to want to shoot well? Thanks for any advice you guy's might have.