Remington Core-Lokt Tipped .300 Remington Ultra Magnum (300 RUM) ammunition (brand part no. R29045) loads a 180-grain bonded bullet for hunters who need flat trajectory and heavy energy at magnum distances. Remington built the Core-Lokt line around a locked core-jacket bond that keeps the bullet together through heavy bone and muscle, and the Tipped variant adds a polymer point that improves the ballistic coefficient and initiates expansion on contact. That case pushes the bullet with serious velocity, giving elk and mule deer hunters a load that reaches out past 300 yards without losing authority. Boxed 20 rounds to a box with 10 boxes to a case, this is rifle ammunition built for hunters who load once at the start of the season and trust it through every hunt.

Key Specifications

• The chambering is .300 Remington Ultra Magnum, delivering flat trajectory and heavy retained energy at extended big-game distances.
• The bullet weighs 180 grains, a proven weight class for elk, mule deer, and other large North American game.
• The bullet is Core-Lokt Tipped, pairing a polymer tip with Remington’s locked core-jacket bond.
• The polymer tip initiates rapid, uniform expansion on impact while the bonded core keeps the jacket and lead locked together for deep penetration.
• Each box holds 20 rounds, enough to sight in and still head to the field with rounds to spare.
• The case pack totals 10 boxes, giving hunters and dealers 200 rounds without reordering mid-season.

Frequently Asked Questions

What is Core-Lokt Tipped construction? It is Remington’s bonded Core-Lokt bullet fitted with a polymer tip, combining a locked core-jacket bond with a tip that initiates rapid expansion.

What game is 180gr 300 RUM ammunition suited for? With magnum velocity behind a 180-grain bonded bullet, it is built for elk, mule deer, and similarly sized big game at extended range.

How many rounds come in a case? Each case holds 10 boxes of 20 rounds, for 200 rounds total.

Buy Remington Core-Lokt Tipped 300 RUM 180gr

A magnum case swap mid-hunt is the last thing you want, and Remington built this load so you don’t have to think about it again once it’s zeroed. Order the case, confirm your zero, and carry the same lot all season so the load behaves the same way every time you pull the trigger. Browse our full lineup of rifle ammunition and order from our Lubbock, Texas gun shop for fast, direct shipping to your door.