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Look no further than the RCBS 500gr RNFPGC. It casts about 525grs out of WW.

By far the most accurate bullet I've tried in my .458WM.

Accurate up to 1900fps (and I've not tried it any faster...

The Lyman 462560 works well in my limited testing.

It still does not quite equal the RCBS 500gr RNFPGC (actually casts about 525 from wheel weights).

The RCBS bullet will shoot well over nearly...

A couple months ago Mr. Nazgul sent me some of these bullets to try in the .458WM.

I tried some over 50gr of 4895 and got fair results. Then I tried 40gr of 5744. This was aweful. Groups at...

Nazgul,

Private Message sent.

Thanks,

RangerBob

I was talking about the Lyman 462560. If you have some I could try, I would be appreciative.

Bob.

I've had a Ruger #1 in .458 for several years. It has become my favorite rifle for deer hunting and for plinking.

The long & wide throat makes it a problem child for cast bullets.

I've tried...

http://www.gunaccessories.com/RCBS/82054.gif

This link should show you the bullet I'm referring to. It is a GC design.

Bob.

I'll bet you find that the heavier bullet is more accurate in that gun. I have the exact same rifle and have worked up over 50 different loads for it. By FAR the most accurate bullets are the...

Sharp corners make it harder to get complete bullet "fill out". Sharp corners can also make it harder to get a bullet to drop free of the mold. These are not bad problems for the hand caster. But...

. . . he's absolutely right.

The RCBS 500gr RNFPGC is by far the most accurate bullet I have tried . . . with any powder (casts at 525gr with WW metal).

I've tried over 50 different cast bullet...

Well, I tried the new loads this afternoon.

Success! Well, sort of.

They all went bang . . . no hang fires.

The patching worked as it's supposed to. There was no leading and I found...

Second try:

This weekend I tried a second approach.

The .458WM has a long (3/4") tapered throat that makes it nearly impossible to seat cast bullets to the rifling. But paper patch bullet make...

Thanks for the help, guys. You've given us some pretty starting points.

Bob.

This fellow is an excellent shot with his 9mm and 357mag. He has tried my .45 Colt with heavy loads (265gr @1150) and didn't have any problem. He has shot my .458 off the bench, and he shoots tight...

I have a young (23) friend that recently bought a Ruger Super Red Neck in .480 Ruger.

The recoil is a little much for him, and he needs a light practice load to shoot for a while.

He has some...

Well, I took the remaining loads and modified them.

I seated all the bullet deeper.

Then I removed the decaping pin and ran all the loads part way into the sizing die to increase neck tension....

John,

I agree.

I think I am going to seat the bullets deeper and increase neck tension to more closing approximate the dementions of my very successfull grease groove bullut load (525gr RNFPGC...

#1 - The exact same 50gr of IMR-4895, with a 525gr RNFPGC greese groove bullet, will shoot 1.5" groups at 100yds. I don't think the powder is the problem. I have tried over 60 different loads in...

Mr. Gibson,

I think we may have experienced the same thing.

After I extracted the shell, I noticed that the powder was clumped. I had only loaded the rounds a couple weeks prior and they had...

Took some loads out to the range on Saturday.

.458WM
50gr 4895
540gr Paper Patch bullet sized to .459 w/ lube spread on patch.
Velocity should be around 1500fps
NOTE: these bullets are not...

My Ruger #1 the throat is .75" and tapers from .465 to .459.

The Lott reamer would clean up about 60% of the existing throat, but you wouldn't have the specs of a Lott chambered from the factory....

The Alliant web site has data for 2400 in the .458WM. You could probably extrapolate for the Lott. If you stay below the .458WM max load, you should be safe.

I have used a mid-range 2400 load...

"I do think the Lott would work better IF it reduces throat diameter and throat length."

"Ruger 77 lott throat>.460"dia,.175"long"

I realize that one of the standard Lott chamber reamers has...

Since I now have Lloyd's gun, I will concur that Lloyd knows what he's talking about.

The 500gr bullets are very accurate if seated out. I do not have to seat out to the rifling, but far enough...

I'm not disputing anything you've said.

I'm simply reporting what has worked for me and what has not.

I personally have little interest in cast bullets over 2000fps.

BTW - the Lott chamber...