Your rifle, looks like the third model. If it is, I have a similar rifle. I shoot 9x23 out of mine. I won't say it's safe in your rifle though. Your call. The 9x23, is easy to reload, as stated by smellie.
I shot my original 9x23 rounds because I couldn't find any brass to reload and I was having a heck of a time, trying to pull the bullets. Winchester must have really made those two boxes tight.
This rifle, is great for rabbits and grouse. If you can get close enough, it will knock over a coyote quite nicely as well.