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Old 03-20-2018, 11:24 PM
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ruggyh ruggyh is offline
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Quote:
Originally Posted by sw282 View Post
Don't forget CAST bullets in your

460 also.. l think you can get those up to almost 500gr..
A couple of notes for those wanting to shoot cast bullets.
If you are going to shoot them at 460 Velocity use gas checks.
Make sure your mearsure your throat and size them appropriately.

In the X-framethe heaviest but will be just under 500 grains.
In BFR you can load bullets to 720 grains.

That said the point of diminishing gains make the 360 grain bullet the largest practical bullet and would consider 340 near perfect.

My preference with heavier bullets is 4227.

You will find powders from 2400, #9, Enforcer, N110, H110, Lil'Gun, 4227 all capable powders in the 460 for both jacketed and cast bullets.

I have not done any pressure work with 4100 but it should also be a good choice.

If you are looking for reduced loads use Trailboss or Tin Star.
Reduced loads with regular cast bullets is no issue (no gas checks).

I heavily suggest fast powders be avoided for reduced loads.

For moderate loading 5744 and 1680 are ok even though they a considered fast.

With any fast powder you run the risk of double and triple charges. I see several 460s and 500s every year with the cylinders and top staps destroyed- Tite Group or Unique causalities coupled with reloading error- sad so easily avoided.

The ES of large volume cases decrease as the case fill increases.
I personally recommend case fill of 80% or greater.

One reason I believe H110 is a good choose if you are only going to use one powder is 100% fill won't blow your 460 up.
100% case fill with 200 grain bullet won't exceed SAAMI pressure for this caliber. The heavier bullets will need just under 100% case fill to prevent sticky extraction.

Sticky extraction starts at about 57 KPSI. It is the best indication of your pressure with using true pressure tools.

Your primers will be flattened and this normal in 460.

You will find the 460 very forgiving with regards to grouping shoots of a wide range of loading.

For that reason there is little need to push the loads to the raged edge.

good luck and be safe
Ruggy
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