Silver dollar

[lost hunter]

Can any detectors separate aluminum from silver? Is the x-terra 505 better at this than the bounty hunter 505 and ace 350? Looking to purchase a minelab 505 are they any better than the 2 above? Tired of digging so much aluminum

 

[nsdq]

i don't know, my 150 show iron somtimes but it turns out to be a coin, most of the alum shows up as a pull tap or nickle