Well i have been wondering about the 208 A-MAX & retumbo for the 300RUM since i heard hornady came out with the 208, but haven't heard much about them for the RUM nor could i find any data for this combo, and ive asked everywhere to no avail, so i finally bit the bullet so to speak, and ordered a 100 of them, and going off old loads ive used for 210 bergers i loaded 50 rounds in 5 round 1/2 grain bumps starting at 89.5 retumbo ending w/ 94.0 grabbed the gun and went to the spot i can shoot closest to my house, but can only get out to 175yds, started off w/ 89.5 and was not impressed, until i hit 93.0 and found the sweet spot, i think i found my new combo, these groups were not shot from a bench, or even a sand bag, but off of a folded blanket on the hood of the truck at 175yds, now i don't shoot for score nor do i even know how to properly measure a group, maybe someone here can tell me what these groups would score, i shoot longrange out to 1000yds about once a week, but not for group i like to shoot plastic containers filled with colored water, it's just way more fun for me than punching holes in paper,
these are the 93.0 & 93.5 groups at 175yds, i hope this helps someone looking for the same load i was looking for..
Your shots look like about 3/4" at 175 yards, which is about .428 MOA. (If I did that right.) I always shoot from 100 yard increments so it is easier to figure.
But that looks like you have the sweet spot. Great shooting too!
"If you love wealth more than liberty, the tranquility of servitude better than the animating contest of freedom, depart from us in peace. We ask not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains rest lightly upon you and may posterity forget that you were our countrymen."-- Samuel Adams
Well i would have to say this load works for me, after shooting the 93.0 & 93.5 RETUMBO w/ the 208 A-MAXs, i split the dif and went with 93.3, and loaded up 50 in new weight sorted nosler custom brass, and went to the place i shoot long range, we set targets at 300 400 500 600 700 800 900 1000 1200 yds for MOA adjustment data, all targets were large carboard with 8" peel and stick blaze orange, except for the 1200yd it was a full culligan water bottle with the peel and stick, after getting all my elevation data out to 1000yds worked out, all that was left was the jug at 1200yds i dialed in 24.7 moa and let one go, elevation was perfect but my windage was off to the right side i dialed in for a 10 mile an hour wind and then this happened, i know luck played it's part too, but after seeing what this load did at all the other yardages, i wasn't all that shocked, this was the longest shot i have ever taken in my life, and after watching that jug explode at 1200 i'm hooked, the shot measured 1.221 from center of bull,