Now for my experiences:
I have two experiences with the Swift Scirocco, both vastly different.
The first was a cow elk at a guessed 250-300 yards. She was standing mostly facing me. At the shot she folded up like nobody's business and flopped on the ground. The shot had entered the neck, broke the spine (thus the dramatic ending)continued on through the front shoulder finally lodging under the skin on the backside of the leg. Great penetration and great terminal performance.
The second was another cow elk at a laser range finder verified distance of 608 yards. She was standing broadside and at the shot showed no sign of being hit. She walked into the timber 30 yards and piled up. This shot hit her in front of the second rib, took out the liver (and whatever else is in that path)and was lodged just under the hide behind the off shoulder.
Both of these animals were shot with 180 grain Sciroccos out of a .300 Winchester Magnum. Muzzle velocity average around 3160 fps. No mild load.
Here is where it gets interesting. The first bullet weighed 174 grains. But did not mushroom at all. The bullet looked like the tip had been cut off with a pair of wire dikes, slightly bending the tip. You can see the riflings from stem to stern on it. Why it did that? See my theory below, but who knows. Just didn't like it so I switched to 200 grain Accubonds the next year (2003).
2003. My gun jams (operator error). My father-in-law still shooting Sciroccos lets me use his gun. I draw a bead, fire and when we recover that bullet it also weighs 174 grains, but is a picture perfect mushroom right out of Swifts adds. I compared the bullet to the bullet they show impacting at 2300 fps and it is identical. That should have been about the impact velocity.
My opinions on the bullet. I don't like the fact that 50% didn't work as designed, whatever the reason may be. However, after a great deal of thought on the matter I have come to the conclusion that the first bullet hit a small branch just before impact that tipped the bullet off center. As a result, the bullet went in off center and did not have the nose collapse inward to begin expansion. Basically the bullet tumbled at that point. If my theory is correct that is some serious penetration from a "tumbler".
I could not have asked any more out of the second bullet.
I have comtemplated the use of accubonds instead, but after a lot of thought I think the scirocco is at least as good if not better than the accubonds. Swift just does not have the reputation Nosler does.