The title of this post should have read "Oregon mule deer taken with FN5.7x28 case." The cartridge looks to be just a bit bigger then a 22 mag case and is .223 caliber.
Here is my monster buck. What a relief I can post pics now. Thanks guys.
I suppose I could come up with a good story as to the difficulty of the shot and how it was 300 yrds running wide open threw a poll thicket but it was not the case. Normally I would let these small ones grow up but like I said I had a new home made bullet I was trying out and only 2 days left for my season after seeing no other bucks for last 7 days.
The bullet did the job with a clean neck shot. Hopfully in future years I will have more opportunities to take larger game with home made bullets. Quite a rewarding feeling actually and this little buck is a trophy for me in those reguards.