Home Forums Hunting & Shooting Express Rifles and Big Bores Only The great 458 Winchester. Everyone should own one at least once

Sir Hannay ,

As I previously bragged about that .458 Cal-402g Shock Hammer regarding precision machining:

First 10 bullets out of the first box:
weight average = 402.7 grains all within +/- 0.2 grains spread
length average (not counting the tiny parting pimple on base which is of no consequence) = 1.3295" all within a spread of +/- 0.0005"
HP diameter 0.249" to 0.250" and depth about 0.385".

The 402-gr Shock Hammer loaded to 3.450" COL is jammed into the rifling of the SAAMI .458 WinMag throat, solid contact, hard bolt closing.
It has a G1-BC estimated at 0.248.
It would be great in a no-throat, seated deep.
In a .458 Lott it would have to be seated to less than 3.450" COL. Maybe 3.340" COL would be good in a .458 Lott. Hilarious.

The .458 Cal-400g that I am proposing will have a higher BC and is capable of longer COL for 3.30" to 3.60" loadings for both the SAAMI .458 WM and the .458 WM+ "wildcattish."
In fact it will be a lot like the unobtainable 400-gr GSC HV which had a G1-BC of 0.372 at 2500 fps
but with the PDR drive bands that are slicker and that I like better for other reasons too, besides BC possibility.
Depth of the 3mm HP will be per expertise of Steve and Brian at Hammer Bullets, Made in the USA, Kalispell, Montana.
Some of the smaller-caliber Hammer Bullets have 1.5mm HP diameters.
3mm is good, on a 400-gr .458 I reckon.
Steve seems to think so too.