Yesterday my dad and a friend all went up to where we were last weekend looking for some bears. The first thing we did was spend all monrning/afternoon looking for the one my friend thought I hit. We found absolutely nothing. We fanned out across the hillside and searchd for about 5-6 hours. About 3 pm we decided we better start heading out of the bottom of the canyon. Me and my friend just got done climbing a rock wall, literally, and were taking a breather. We were just joking around and I said, "man I"d give my left *** to see another bear down there." Well get the scissors out cuz 10 seconds later, me and my friend both spotted another cinnamon colored black bear in the bottom... My dad was actually another ridge over and he had the rangefinder. MY rangefinders battery is dead. We figured the bear to be abslutely no further then 300 yards. Yet, once again, I was faced with at least a 45 degree downhill shot. Remembering everything that went wrong last weekend, and how I shot so high, I figured this time I'd nail him...My 7 RM is zeroed at 200 yards w/the 175g ULD at 2875fps. I only clicked my scope 2 clicks, so that would be about a 225 yd zero. I figured that was plenty considering the range/angle/and I had no rangefinder. I know I didin't want to over shoot him again...The wind was blowing to the left off the ridge about 10-15 MPH, but as soon as the bullet got in the canyon, there was little if any wind at all, so I did not even compensate for it..I dont know if that was a good idea or not...Well the moment of truth was nearing, I could tell the bear was behind a little scrubby tree facing me. I figured I put it right on his chest, and he would be mine. At the squeeze of the trigger, I heard the braked 7 RM go off, and to my surprise I heard no resounding "whop." The bear whirled around and was gone in a flash. My friend did not even get a shot, his remington semi auto 30-06 firing pin didn't go off or some stupid thing like that...I was completely dumbfounded. I just cant believe I"ve missed 3 bears all under 400 yards, this one at 280 and I"m just compltely missing them. I dont get it!?!? After I shot, my dad came down and we rangefinded him at 280. My scope was only set for 225. Now this is waht I dont understand about the ballistics side of it. I should have nailed that bear reguardless of the angle at that range.....With a 200 yard zero, my bullet only drops like 6 inches at 280 yards, right? Ok, now say the angle was 45, what you would do is times the angle value times the drop, then that will give a number that you take away from you drop. So in this case it would be this. 45 angle value is .293x6 drop inches =1.7 Now its to my understanding you take 1.7 and take that away from 6, and you'll have your new drop at this range/angle and it would be 4.3", right guys??? I got this angle stuff right out the back of the sierra manua, so if I"m reading it wrong, please let me know...ALso, at the extreme side of things, just to say he was at a 60 angle, the difference in drop is only like 3", so not a whole hell of a lot difference either with that kinda angle at that little of range... What I dont get is this, a bears vital zone sure in the hell is bigger then 6", so why did I miss this bear when the angle/drop had very very little to do with trajectory? Assuming my math is right, that bear shoulda been toast...I dont know where I hit, so I cant tell even begin to tell ya if I shot high or low...All I know is I shoulda hit the bear with only a 1.7" difference in trajectory, its about ridiculous IMO. All I can gather from all these missing shots at a downhill angle is this, I need to get my ass out and practice those kinda shots, cuz they absolutely SUCK! I've since decided that maybe I dont even need to be up in the woods witha rifle. If cant make a 275-375 yard shot on a bear, then somethings wrong with me. Thats about unheard of for me to miss 3 big game animals under 400 yards. I was about ready to throw my freaking rifle off that damn mountain yesterday I was so pissed off... I think we have a couple more weekends left. I"m not sure If I'm able to go both of them, but I"m gonna try real hard to make it up there at least 1 more time. Theres just bears running everywhere up there, its crazy. About the only good I can see out of it is this, there gonna be bigger next year.