Most any scoped inline with a good barrel (not trashed) will kill deer at 100 yds easy. Good cast bullets in the 350 to 450 grain range will work good. You may need a sizeing die as actual bore diameter of ML is quite variable.
Personally I suggest you find a good early mfg. used Knight, White or a TC Black Diamond, etc.... They can be had at very reasonable price and shoot good.
Johnson1942 is the man and if he PM you he'll have the straight stuff.
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