When the Sendero first came out in about 1995 or '96, I was doing my deer hunting on a place in N. TX that was about 4 sections (4 square miles), one of which was a winter wheat field. The rest of it was brushy, but a couple of years before a geologic survey had been done, and the place was criss-crossed with miles-long, 12-foot wide cuts made by a D-9 'dozer. Well before the rifle came out, we had been calling the cuts
"Senderos," which is the Spanish word for "Long Path." This, by the way, is where I came up with my handle here on TFL.
It was not at all unusual to see a good deer 300 to 500 yards away, calmly standing there browsing. On one occasion, I took a nice buck in the plowed wheat field with a .257 Roberts and a 100 gr bullet, and had to stalk and belly crawl in the open field for a distance to manage a 300 yard shot on the buck. (He ran out of the field, but I did get him with a single shot.) I felt that I needed (Really WANTED, inother words) a long range rifle, and when Remington brought out the "Sendero," I knew that I must have it. A poor college student working nights as a calltaker for a help desk, I took a second job as a waiter at IHOP to earn the money to buy my Sendero. I sprung for the extra $100 to get it in stainless fluted. A friend sold me some old dies, which came with a coupla dozen of his old reloads.
The whole time that I was dreaming of buying this rifle, there was only one caliber for me:
.300 Winchester Magnum. At the time, it was only offered in .25.06, .270, 7mm Magnum, and .300 Win Mag. My thinking was, if I was buying a rifle for its long range ability, why not get the one that would reach the furthest? Also, I figured I could make it serve double duty as an elk rifle. (I did in fact carry that heavy beast up and down the San Juan mountain range two elk seasons running.)
But now it's offered in the new calibers. I must confess that the Ultramag offerings give some exciting velocities. As I'm a reloader (My Sendero, with ~800 to 1000 rounds through it, has NEVER fired a round of factory through it), I suppose that I would probably go for .300 Ultramag loading these days.
Folks, the issue isn't so much what it takes to kill a deer-- we all know that a .300 Win Mag is overkill for deer of any variety. The issue is what it takes to flatten out your shot over a LONNNNG shot, and buck the wind. And, once it's gotten downrange, it
is nice to still have enough power to give you a little margin for error.
After all that planning, and setting up my Sendero with a 180g boat tail SP at 3100 fps (Note: HOT!) that gives .75 M.O.A. groups all day long. . . I've not shot a deer at over 120 yards with it!
Our host on the big ranch we used to hunt on lost rights to hunt there, and I never got to shoot a deer out there.