Be aware there are (were?) 2 different 180s. One for single shot pistol & one for rifle. The pistol bullets are .357" & #4220 & not recommended for tube magazines. Speer has data.

https://www.speer.com/reloading/rifle-data.html

Yes a crimp is a good idea in a tube mag.

Sacred cows make good burgers when you know what temperature to cook them at.-Rev. Billy