It depends on how much adjustments your scope has available. The 20 MOA taper means you will be dialing in at least 80 clicks of down (20 MOA) to boresite. If you only have 50 or so MOA, you will be down toward the bottom. (Sorry, don't know the MAX adjustments of the nightforce off the top of my head, but general rule of thumb is higher the mag, lower the amount of available adjustments)
Okay, 100 MOA is a good amount (the 30mm tube gives you more adjustment room).
If you are at the bottom (meaning you dialed in 50 MOA of down, or 200 clicks) then something doesn't seem right. If you are down anywhere from 15 - 30 MOA, I would not worry about it, in fact, the more down the better, as it gives you MORE UP adjustments for REALLY long shots.
Ok, I'm not all the way down to the bottom so that would mean I must be good to go? As a side note, They farthest I have ever shot successfully was just shy of 450 yards with a 7 rem mag and not this 300 ultra. That little javelina never knew what happened. I have only been out to 100 with the 300 since I am trying to find a hand load it likes. I do look forward to shooting out around the 1000 yard mark. I hope my scope will allow for that. Thanks again for your help and I will let you know after this weekend what I find when I go to the range.
I think the fps comparisons are a bit off, as I know you'll likely not shoot anything other than your own hand loads. That having been said, you'll load them to max capacity, and probably be 150-200 fps faster with identical bullets to the 300 WM.
I suspect you'll find a good accuracy load somewhere in the 80-90% of max pressure range (like everyone else) and still be 100-150 fps faster than a 300WM. :wink:
Looking at the Federal site regarding the Federal Gold Medal Match for the 300 WM, you find the 190 SMK being pushed at 2,900 fps. Not that they are the king of match-grade ammo, but it shoots pretty darn good for factory ammo. As far as I know, no one makes match ammo for the 300 RUM, except a few custom ammo builders, like D&L Sports. The speed of which is, at least to me, unknown, but certainly over 3,100 fps. Having said all this, I believe there is a significant difference between the accuracy load and the max hunting load for any rifle cartridge, expecially a magnum like the 300 RUM. I believe you will likely find the optimum accuracy load somewhere between 85-95% (+/- 2-3%) of max pressure (I checked my math and my earlier statement of 80-90% being too conservative), just like it is for virtually every other rifle caliber out there.
In any event if anything is unlucky enough to wander in front of you when you have hunting load locked and loaded, its time is likely up. :wink:
I did a little research and got some info on a load I am trying. This data is partially from the Nosler reloading guide (5th edition) to get a muzzle velocity from 88.0 grains H4831sc and 180 gr ballistic tip bullet shooting at 3205 fps. and part of it comes from a website I believe Jeffvn told me about to calculate the ballistics. Here it is.
Now for a short disclaimer. I will never shoot at an animal at distances over about 450 yards unless I spent alot of time at the range and learn exactly what my rifle does at ranges to about 600 yards. All of other distances will be shot at non-living targets only just to see if I can hit them. If I can shoot accurately enough I might try going further until I find my personal limits.
As a side note. at 1550 yards my bullet will drop 72.5 feet. Wow!