The pics provided help some but are still not overly clear or close up. Do you have any way of providing an accurate measurement of the larger bullet (calipers, not tape measure)? I directionally agree with tedyoh that it resembles a CW pistol bullet, but without measurements and good pics, it’s hard to confirm. There are many variants of certain calibers (.44 for example) and small details make the difference in Id.
And when asking for clear pics, the rings are the important part…..like attached