Many years ago when I was still a young teen, I found a box of Greek ammo at Western Auto for my 8x57.
They were something like a 195 gr FMJ best I can remember.
A box of 100 cost me $5.95 and I bought them for the brass to reload.
Much to my dismay, they were Berdan primed and I could not do anything with them as I did not have the resources.
So, I started thinking that maybe there is a way to convert them into usable hunting ammo......
I found my Dad's side cutters in his tool box along with a mill file.
I whacked the end of the FMJ off, flattened the end with the mill file and wowee, I had a soft point. Then I got more creative and dug through Dad's assortment of drill bits and found a suitable size, got the drill motor out and in short time created a hollow point.
They were accurate to 100 yds. Don't know about more as I only shot them at 100.
Deer season came along and I had maybe 10 or 12 of the cartridges in my coat pocket. Dad wanted to hunt on the hill so I had the blind closest to camp.
That afternoon, an unlucky 6 pointer came out to feed and I waited until he presented himself broadside.
I lit a round off, he circled 360 and took off. I knew I hit him because during his circle, I saw the offside was completely covered with red.
After I found him, I rolled him over and there was a good 6-7" hole on the off side. The inside were a mess. It was a heart shot, but the stomach still got ruptured and it was full of food.
I prolly gagged 4 or 5 times in the process of field dressing him out due to the smell from the stomach contents.
So much for that experiment as I never shot another animal with those modified cartridges.
As suggested in an earlier post, I saved my money and got some real hunting cartridges. They only cost around $3 or $4 back then.