I'll take a pic of a 385 great plains i just recovered from shooting today. Its a little bigger than a quarter. It did loose a lot of weight but my goodness! It broke off a big chunk of rock that it hit. Another option is it measure your bore and order some bullets from Bullshop. I'll be doing that in a week or 2.

Edit:

Heres the pic of the 385 great plains. The bullet on the left is a bullet we recovered from last years doe. It went through one shoulder blade and stuck a little into the other. The bullet on the right is what i found today after shooting the x-150 and it made a mess out of the rock it hit. Speaking about the x-150, i must adjust a little to the right lol. But i wouldnt be affraid to use this bullet, its a very good bullet and will easily do the job.