Got news for you.....any .22 caliber bullet / rifle is "iffy" for deer. It can be made to work, but realize that the shot placement is critical and must be near perfect. Almost any soft point from 50-70 grains will work if heavy bone is avoided and a broadside lung shot or neck shot ("iffy" shot too) is taken. Just stay away from true "varmit" bullets that are designed to explode on impact.

I hate change, it's never for the better.... Grumpy Old Men
The more I learn, the more I realize how little I know