I shoot a lot of cast handgun bullets but never rifle. is leading a issue with the higher speeds? Can you recommend commercial 223 bullets?

I will be shooting this with light loads so I don't beat it up.

It has markings STEVENS "WALNUT HILL" on top.
22 HORNET & address as Chicopee Hill, MA

My dad told me his dad used it in NW Ohio to kill hawks. He said the state gave them .50 for two feet. I guess they were killing off the rabbits and pheasants on the game preserve. He said he used to load it a bit hot but it was great for getting hawks in the trees.

He also said that he replaced the cross hairs with spider web because the originals were to thick.

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Shoot fast & live long
Warren