Yes, this was in the late 80's or early 90's. I was working in a field camp in SE AK where we all lived in xtra tuffs. I had planned a multiday backpack trip into a peak that saw few hunters- we even "scouted" out the route that from afar that looked to be meadows to get to alpine. In reality, the meadows were fields of snow-bent alders. After two days in the alders and nowhere near alpine, we pulled the plug and head back to camp severally defeated. I had a couple days of leave left and woke early to find goats on a peak that I knew had a "trail" as several in camp had summited that summer. I threw some random food and two liters of water in a day pack, grabbed my dads Herters J9 and headed up. I was to alpine fairly quickly where I stopped about half way between tree line and the top for a snack and water. A billy was above me looking down (as described from those in camp) and they got to watch as we played the cat and mouse across the alpine face. I caught up to the billy as short distance from the very top. One shot from the 270 (mixed ammo, probably a 130 gr corelock) did him in. I broke him down and packed out all the meat, head and hide. The daypack was stuffed and so heavy I could barely pick it up. I ran out of water by the time I made it to treeline and stumbled down the mountain ending up dropping half the meat about 2/3 the way down. I made it back to camp in the late evening totally exhausted. The next day I went back up and picked up the rest of the meat, how I was able to find it, is a minor miracle.
What saved me was that I was young and strong from a long season living in field camps- I couldn't do that today, nor would I try. At this time, I had only shot a couple deer- I was super green at hunting and being naïve maybe ensured I had a guardian angle looking over me.
The gear used is more like what people used doing typical outdoor work during this era, xtra tuffs, HH bibs (the heavy ones) jeans, probably a simple button down long sleeve over a t-shirt and ballcap.
I still have the REI day pack and I recently found the two water bottles in some camping gear that brought back memories of this great adventure. . Between me, my brother and dad, that Herters rifle has killed a lot of game and seen a lot of adventures.
To be young again!!