Is it possible to vaporize a Nosler Accubond?!

cb4128

Well-Known Member
Joined
Apr 25, 2014
Messages
1,643
I recently picked up a Ruger No 1 in 257wby with a 28" barrel.

I loaded up a pressure test with IMR 7828 ssc and 110gr nosler accubonds.

Below are the results, never had any kind of pressure signs:

69.0- 3,493 fps
69.5- 3,549 fps
70.0- 3,554 fps
70.5- 3,550 fps
71.0- 3,631 fps
71.5- 3,628 fps

*Book max is at 71gr

I'm pretty excited about this gun and load combo. Going to do accuracy testing next and plan to sight in at 250 yards.

Does anyone have any experience with Accubonds at these speeds? Interested to hear some real world experience!
 

Attachments

  • 4B18509D-22F9-403C-AC2B-18C79DA1FC70.jpeg
    4B18509D-22F9-403C-AC2B-18C79DA1FC70.jpeg
    1.3 MB · Views: 252
When you are talking about "Vaporizing" you should be talking about the bullet separating from components (copper or metal jacket and Core-Lead or other type metal). Not so much from FPS as in Velocity but looking at the RPM (Revolutions Per Minute) which relates to barrel twist. RPM has much more physical effect on the composition of a bullet.
 
Does anyone know when rpm's start to cause a bullet like the accubond to come apart?

According to an online calculator I'm at 255,600 RPM's.

Thanks!
 
An Accubond, by definition, has the jacket bonded to the core chemically. It's going to be a lot harder to spin apart than other bullets. I have blown up Vmax and Amax bullets, at extreme velocities for their caliber and not with frequency. I've never seen an Accubond come apart in the air.
 
Thought about trying a 180 grain 338 cal one in my 338 cheytac for fun.

Just to give you an idea of how fast I could potentially push one, we have had 300 grain smk's up to 3,500 fps before in this gun.

I estimate I could prob get one going about 4,300 fps / 310,000 rpm out of my 10 twist.
Crank it up and let us know please?
 
I recently picked up a Ruger No 1 in 257wby with a 28" barrel.

I loaded up a pressure test with IMR 7828 ssc and 110gr nosler accubonds.

Below are the results, never had any kind of pressure signs:

69.0- 3,493 fps
69.5- 3,549 fps
70.0- 3,554 fps
70.5- 3,550 fps
71.0- 3,631 fps
71.5- 3,628 fps

*Book max is at 71gr

I'm pretty excited about this gun and load combo. Going to do accuracy testing next and plan to sight in at 250 yards.

Does anyone have any experience with Accubonds at these speeds? Interested to hear some real world experience!
No accubond answers for you but just gotta say…that's a classy rifle and cartridge combo man! Congrats.
 
Top