I just bought a Remington 700 3006 from a local outfitter/gun shop.
For some reason (jedi mind trick) I didn’t realize until I got home that the firearm was pre-owned.
It did not come with a magazine, lock, box or instructions. I was buying it with my daughter who was paying for it for me as my Christmas present.
Do you just cram the rounds down the ejection port or something?
I pushed a button on the inside of the trigger guard and a flap popped open cutting my finger, fun!
I bet you can find the owner’s manual online.
But the short answer is yes. If it doesn’t have a detachable magazine you open the bolt and press the cartridges down from the top. Be sure to push each one rearward. You can also hold them down and close the bolt over the top of the cartridges on an empty chamber.