What kind of bullet is this?

[sjb]

We found these while MD in our NH yard- all woods, they were about 1" -2" down with strong signal. No band of little vertical lines like seen on some older bullets. Larger one is almost 3/4" smaller two are 1/2" tall.

thank you in advance for your time!

SJB

 

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[BosnMate]

The look to me to be full metal jacket bullets for the model 1911 .45 ACP. (Automatic Colt Pistol) Need accurate
measurements of the the diameter for a good ID.

 

[sjb]

Diameter

The diameter of all three is 3/8". The two smaller ones are flat bottomed where the larger one is concave. Thanks for any help identifying these!
SJB