Thanks to all for the replies.
First up I there
may be a mistake,, I have two lots that are identical in every way except one lot is Federal and the other is American Eagle.
The actual rounds that I used last night I had stored in a plastic ammo box because I hate the night condensation getting into factory cardboard packets.
Whether they were American Eagle by brand or Federal I now have no way of telling.
However,,, I believe they would all come from the same factory.
Overall,, I can definitely rule out Fouled barrels,, Dirt in barrels,, Sticks in barrels,, and Old ammo degraded from moisture.
There is no visible signs of damage to inside the barrel or outside.
The cases are identical (naked eye) with no sign of cracks, or flattened primers to indicate which case was the offending one.
The other possible cause/s mentioned ie: moisture in the shell when made,,, I have no way of telling.
And yes Blade,, the projectiles poi was exactly where intended.
However,, thinking back, I was amazed that it killed so effectively given that only 130gr JHP was not my ideal choice on a mud encrusted boars shoulder.
And,,,,, the range of 350 meters would not have helped either for the little pill.
In the first outing, I was set up for pigs with 185gr SP projectiles, and shot the dog.
In the last outing I was set up for dogs with the 130gr JHP's, and shot the boar.
I do not fear death itself... Only its inopportune timing!
I've come to realize that,,,,, the two most loving, loyal, and trustworthy females in my entire life were both canines.