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The .300 Remington Ultra Magnum, also known as the .300 Ultra Mag, 7.62×72mm or .300 RUM is a 7.62 mm (.308 inch) rifle cartridge introduced by Remington Arms in 1999. The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.
I am selling one box of 300 RUM but there are some choices. I have Remington 150gr and 180gr Swift Scirocco Bonded, 200gr Nosler Partition, and Federal 180gr Bear Claw Bonded.
Price is $120 for 1 box / 20 rounds
**** Again, I am selling only one box. ****
Cash only, face to face, Port...
I have a 2001 Winchester Model 70 300 Remington Ultra Mag made in the New Haven Connecticut plant. It has two boxes of Ammo down the tube and is in 98-99% condition. This was a special order from a distributor, to my knowledge only 400 were made. The last one that I saw sold on Gunbroker for...
I have a 50 count unopened bag of .300 Remington Ultra Mag brass. This is about 10 years old, but the bag is sealed like new. I'm hoping to trade this for a brick of CCI small pistol primers. Winchester, Remington or Federal would work too I suppose. I know this brass costs about twice what...
I have the following mixed headstamp brass for sale or trade. They have been deprimed and wet tumbled. Trade interests would be powder, primers, bullets, wads or shot. Or maybe something I did not know I needed. I will ship at your expense.
144 .300 Rem Ultra Mag. 45 unfired , 99 once fired. RP...
20 once-fired .300 RUM cases.
I was shooting next to a fellow who shot one box of new ammo, threw the box down on the ground into a wet muddy puddle and left.
So the box was ruined, but the cases he left are just fine. In fact they landed on dry gravel so are clean and ready to process...