On second thought it is probably just a dropped cartridge from someone hunting with the new and improved ratranger 2004, which is basically a gerbil canon retrofitted with the new rat master barrel.
Has more knock down energy than the old gerbil canon and the new rifleing takes the hair off , which makes for a much more aerodynamic projectile.The new barrel also has what the manufacturer refers to as a fold back system integrated into the last 1/4 inch of the bore. This simple yet effective device folds the legs of the LIVE ROUND back into a neat aero package.
These new canons are the most accurate to date in the gerbil series of weapons. Groups of 2" or less at 12,000 yards have been recorded. These groups were fired from a bench rest on a calm day and not everyone should expect these kind of results.The new canon comes with 1000 projectile protectors that slip over the nose of the bullet.
Fireing a LIVE ROUND at 26,000 fps without the protector has resulted in bullet failure at shorter ranges.
There have been a couple of reports of bullet disintergration at around 28,500 fps so all you reloaders take note !!! Do not exceed the max charge of .75 pounds of 4198.Recoil is excessive but manageable. Lower charges result in tumbling of projectile and are also not recommended.
Ammo has a limited shelf life, and it is to be used before the hair starts to slip for premium accuracy.Bore fouling can be a problem if the canon is loaded for extended periods of time .
I am having way too much fun with this. BYE
This gives a whole new meaning to the words LIVE ROUND