4357 fps out of a 460 Weatherby

[bergmen]

I'm still trying to get my head around 110 grs of H110!

Me too! Less than 64 loaded rounds per pound of powder. Heavens to murgatroid!

Dan

 

[bergmen]

Good Lord, that night muzzle flash would be visible by the Space Shuttle (if it was still flying). Who would think that you would need tinted eye protection for night shooting?

Dan

 

[bergmen]

I do have obvious aluminum fouling in the bore that I'm not sure how to get out. Have only ran a few patches through it to get the powder out.

A caustic base will remove aluminum and not touch the steel. Ammonia comes to mind.

Dan

 

[CountryUgly]

Way cool...It's because of post like this that I love THR..... That is one of the hottest and fastest loads I've seen verified. I have heard some people talk about loads like this and fall way short when push come to shove, but way to back it up.....The bullet didn't expand/explode like I had thought when first reading the OP....interesting... If this thing groups well and hold its velocity at any kind of distance I see exploding vermin in your future.

 

[56hawk]

Got a recording on the 118 grain load: 4581fps. I'm pretty close to the pressure max with this load, so I think that's about all it will do without changing powders.

 

[Strongbad]

Quote:
Originally Posted by Strongbad View Post
I was able to get Barnes X 160's up to 4000 fps. out of a custom 338/378.

What powder did you use? I was going to post in the reloading section about what powders to try out with these bullets, but every time I have posted something like this before I just get a bunch of responses about how you can only use published data or you will blow your gun up.

Sorry, I've haven't been on in a week or so. A quick check of the data shows that I was using the usual suspects for the 338/378 which are liable to be safe, but too slow for the 460. H-4350 was the fastest powder (not velocity) I tried. Otherwise the majority of the loads I tested were H-870, RL-22, RL-25, IMR-7828, and H-4831SC. Considering you're using a pistol powder to do what you're getting now, you could probably load a case full of any of those behind that bullet and never have an issue. Downside is that they're liable to just be too darn slow.

 

[Inebriated]

Man that is just.....

Wow. And I was impressed by my .243 Win pushing 3200 fps lol.

 

[hnoppenberger]

Id say your getting close to m1a1 main gun velocities.

 

[Owen Sparks]

Back in the late 1970's a gun magazine did an article on loading handguns with cast pewter bullets. They were getting over 2,000 fps out of conventional revolvers.