Need help identifying a projectile

[floogy]

Yeah, I will probably go at the end of a pier and chuck it in the ocean. Weird that it didn't go off upon impact. I'm glad I asked.

It's fairly common even for modern munitions to not detonate as intended. See current conflict in Ukraine. Rockets, bombs and all manner of UXO is now covering that country, even though there is probably still WW2 UXO laying around in spots.

My guess is it was fired from an aircraft or ship off the coast, richocheted somewhere and landed there. Even if the munitions were WW2 Era, it could've been fired many years after. Remember, even 22lr can travel up to a mile. This could travel much much farther.

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[SanDiego619]

It was imbedded in the railroad tie and in the pictures you can see large area of wood was splintered off upon impact. I had to pry it out with a pair of leatherman. I was thinking it might have been a CWIS round, but then why the heck would anyone be shooting towards Del Mar? Lol

If it was a Japanese round that would be really interesting! I don't know when that track was laid. I wonder if a historian at Cabrillo would know more about how it got there.

[c good]

There have been numerous repairs and refitting of our tracks in North County over the years. It most likely was brought in from another location with the projectile embedded. Over the years it was finally exposed.

[SkyHawk]

Can't see enough to say which variant of 20mm round it is

Show us the nose
Tell us every legible marking it has

[Che762x39]

About a year ago I was walking the coastal railroad just south of Del Mar, and I stumbled upon this. Makes me wonder why would anyone fire a gun towards the coast. Maybe ricochet, or an accidental discharge? Anyone know what gun this was fired from?

It was likely fired towards the ocean. The US military has used the Pacific Ocean as a target for 100 +/- years.

[hambam105]

I don't believe I've ever shared this info on calguns...

When I was in the 5th grade, the story goes that two elementary kids at another school not a mile away
brought some sort of ordinance to school for Show & Tell. Shortly thereafter it detonated and killed the
presenter and seriously wounded couple other kids.

I like to joke around with everyone around here, but this post is a bit serious.