I hunt moose, black bear, caribou, elk and whitetail. This rifle will be used for big game at extended ranges. i figured i should do research before i really get into it. Someone told me to get a 300 RUM and get it fully customed and that way i would have a light carry around 300 wsm for 500 yards and closer and the 300 rum for extended ranges out too 1000 yards. another person told me to go all the way and get a 338 caliber. The one i seem to read most about is the 338. edge. what is everyones opinion on a caliber? i spoke with the guy in Montana who says shots can be from 50 yards all the way too 1200 yards. Where i hunt in northern Ontario, for moose and black bear on the 5 occasions where we saw animals last year, we had a good black bear at 568 yards. a moose at 802 yards, a large bull moose at 550 yards and the other ones were 280 yards and 65 yards. so i would really like to get into long range hunting. I have been practicing at ranges up too 600 yards. So i have never had a custom rifle, i just started practicing long range last spring as for i took my first shot ever past 150 yards. I went to a range with a bunch of buddies and none of us have ever shot long range. We fired the first 3 at 100 yards even to make sure we were good to get going. My 3 shot group was right where i left it. I set up for the 203 yard shot. fired a 3 shot group that was absolutely perfect, better then i was expecting. Acting confident we all backed it up too 301 yards. I fired a 7 shot group (i know random number it was just the amount of bullets i had left in my pocket before going back to the truck) all 7 shots made it in a 2.5" group. i was very pleased to say the least. We had to run but there was a small rock at 423 yards and we all set up for 1 shot each. My neighbor connected off the top right hand corner of the rock with his 308. win. I set up and hit the rock center mass with my 300. wsm! was i stoked!! never shot pasted 150 yards and in the same day i beat my own distance record 3 times! i recently picked up a 243. win remington model 700 sps varmint topped off with a vortex viper 6.5-20x44mm. This was my first real semi long range rifle. we got it to group around .75" at 100 yards. So i backed up too 300 yards to see how the rifle was grouping. My first group was just smaller then 2.5". The second group was just around 2.25" and the 3 group was just a little smaller then 3". I let the barrel cool down and backed up to 600 yards. The wind really picked up so i fired 1 shot and packed it up. it was actually 589 yards but it was close enough. I entered the data in my phone, dialed in for the first time on my scope and i nailed center mass for elevation, but i didn't know how to take in to consideration for windage so i hit 4" off to the right. I was so excited. i will be practicing and practicing untill i get really good but eventually i would like to custom a rifle. I have done a lot more practicing since then these were just the beginning steps into my interest into long range hunting and shooting and wanted to share it with you boys!