Re: .300 Ultra Mag vs. 7mm Ultra Mag
I vote for the 300 RUM. I have shot quite a few loads from the 125g btip, which is quite worthless at 3950 unless you want to rebarrel aftera couple hundred rounds. I have shot the 150's at 3650fps, which is still to fast for deer. I have not tested 165's. I have tested 180's to 3450fps. I have shot 200's at 3200fps, I have shot 210g VLD's at 3000fps, with great accuracy out of a stock rem LSS out to 1150 yards, and I have also shot the 220g SMK to 3000fps. I dont recomend a bullet lighter then 180g for 300 RUM. Less than that and your handicapping the cartridge. A 180g at 3350 or so still hits very very hard, a 200g at 3200 hits a litle harder, while the 210g and 220g at 3000 hit a little harder yet. I have about 1000 roudns down my barrel and I know its need a new barrel. I have killed 2 elk at ranges of 250 yard, and 512 yards. 1 big bear at 250 yards, and several coyotes with the longest being 775 yards. The 300 RUM is a very accurate cartridge, and I'm sure the 7 RUM is also, but have no experience with it. My particular 300 RUM is a LSS that has had nothign more then a trigger job and glass bedded and in its prime could shoot 3.5" and 4" groups at 800 yards. There is nothing wrong with the 7 RUM, but for long range killing power, the 7 RUM just cant compete with the bigger brother, the difference is marginal, but wouldn't you rather have that little bit of edge at LR? The heavier 30 cal bullets along with the frontal diameter and more ft lbs will help. JMO.