I think my rifle is a Remington 1700... maybe 700??? Anyway I have been shooting Winchester SuperX 100grain rounds through it and just today I went out and bought some Hornady 100 grains because they claim that they are dead on at 200 yards vs. Winchesters 100yds. I was re-sighting the gun in today at about 350 yards and I got it down to being able to hit the paper on the target but it still needs a lot of fine tuning. I have a 3-12x50 rangefinding scope with lighted reticles and it seemsto work quite well and has a decent zoom on it. I live in Midwestern Minnesota in the Lake Agassis flat plains. It is litterally beet fields as far as the eye can see. You can actually clearly see towns that about 20 miles away and there are only trees around the very few houses in the area. This makes seeing the coyotes really easy and shooting them very difficult. The biggest problem is the roads are all exactly a mile apart so when they sit in the middle of the fields they are at a half mile and the second they see a vehicle they high tail it the other way. And they NEVER go near a road unless they know you wont have a chance of catching up to them...