Palladan44
Member
- Joined
- Nov 7, 2020
- Messages
- 1,904
Just for the sake of fun, I picked up a batch of M855A1. 62gr projectiles.
Curiosity has got the best of me, as usual.
Couple thoughts#1
They are lead free, and have a similar length to SMK 77gr. so I'm curious where to start as far as data. The closest I can find would probably be the Barnes data for their 62gr lead free projectile, which seems to have a long bullet.
I have H335, Benchmark and CFE223.
I'm leaning towards CFE223 and starting around 25.5gr.
Thought #2
On many of the projectiles, about 1 in 5 or so, you can physically spin the penetrator tip that's pressed into the copper bullet body. Using my imagination and what I know of physics, there is no way in blue hell that can be a good thing....the rotational acceleration of the bullet body with that tip sitting still and then slowly spinning up like a top......then spinning back down.....eeeek. or it's nothing.
Curiosity has got the best of me, as usual.
Couple thoughts#1
They are lead free, and have a similar length to SMK 77gr. so I'm curious where to start as far as data. The closest I can find would probably be the Barnes data for their 62gr lead free projectile, which seems to have a long bullet.
I have H335, Benchmark and CFE223.
I'm leaning towards CFE223 and starting around 25.5gr.
Thought #2
On many of the projectiles, about 1 in 5 or so, you can physically spin the penetrator tip that's pressed into the copper bullet body. Using my imagination and what I know of physics, there is no way in blue hell that can be a good thing....the rotational acceleration of the bullet body with that tip sitting still and then slowly spinning up like a top......then spinning back down.....eeeek. or it's nothing.