6.5CM out of Circulation

Correct Hornady 160 RN. I purchased a few hundred rounds about a decade ago. Still fun to shoot.
I picked up 2 boxes to shoot subsonic but they keyholed at 100 yards so I shot the rest up plinking.

I wish I had shot a deer with them to compare with match bullet wounds.

I switched to 140gr Speer Hot Cor for subsonic loads.
 
I picked up 2 boxes to shoot subsonic but they keyholed at 100 yards so I shot the rest up plinking.

I wish I had shot a deer with them to compare with match bullet wounds.

It may not have been that bullet but I saw a guy test one (or its twin brother) on gel and it was impressive.
 
I picked up 2 boxes to shoot subsonic but they keyholed at 100 yards so I shot the rest up plinking.

I wish I had shot a deer with them to compare with match bullet wounds.

I switched to 140gr Speer Hot Cor for subsonic loads.
I ran these subsonic no issue. What’s Twist Rate?
 
I ran these subsonic no issue. What’s Twist Rate?
1:8 Desert Tech SRS A2 w/ 18" barrel.

I may have misused the word keyholed and meant yawed...

I doubt the bullets were yawing at muzzle but were definitely doing so at 100 yds so I stopped because I figured an end cap strike was inevitable.

I'm at sea level and bullets start cracking around 1064fps.
 
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