485gn cast bullet gas check 458 win mag

[DGY]

Good day, I have a bunch of 485gn cast bullets lubed and gas checked, some H4198 and some IMR4064
Any of you guys ave some load data using these components?

 

[saskgunowner101]

My lee manual shows 71 grains IMR-4064 -compressed load for a 510 grain jacketed bullet, 2,000 fps ballpark, 40,000 cup

Also, 51.5 to 58 grains of IMR-4198 with 510 grain jacketed bullets, 1,700-1,900 fps ballpark, 52,500 cup.

 

[Alex McKr]

DGY: This data....all for .458 WinMag. Cast bullets. #2 Alloy.
Also included some data for 500 grain bullets, for reference.

From: Third Edition. Lyman Cast Bullet Handbook

Bullet: 482 gr. Cast #2 Alloy Note: Closest to your bullet.
Powder: IMR 4064
Min: 60gr.............. Max: 68+ gr. (+ denotes compressed charge)
Gas checked bullet.

From: 51st Edition. Lyman Reloading Handbook

Bullet:: 475 gr. #2 Alloy Note: Close to your bullet
Powder: IMR 4064
Min: 52 gr...........Max: 58 gr.
gas checked bullet

Bullet: 500 gr. #2 Alloy
Powder: IMR 4064
Min: 49.5 gr...........Max: 55 gr
gas checked bullet
-------------------------------------------------------------------------------------------------------------------------------------------------------
Note: IMR 4198* data listed below. May be useful reference.

Bullet: 475 gr. #2 Alloy
Powder: IMR 4198*
Min: 37.5................Max: 41.5gr
gas checked bullet

Bullet: 500 gr #2 Alloy
Powder: IMR 4198*
Min: 37.5...................Max:48 gr.
gas checked bullet

Data from latest published Lyman #51 manual is a bit more conservative, compared to earlier editions.

Both sources also have data for 385 gr. bullets too, if this may be useful for reference.

Al