ORIGINAL: James B
Does anyone have the newest Hornady Manual? I would like to get the info on loading the 405 Winchester. I saw the data in the new manual at a store but didn't pick it up yet. What is the SD of their 300 grain bullet and maybe one load. Thanks.
I needed a new squirrel gun
. There are getting to be lots of those saber tooth squirrel around here.
Assuming the bullet is .406" in diameter, the sd is: 300/7000/.164836 (.406 squared) = .2599 .
If possible, use 400-grain bullets in your .405. Their SD is much better at 400/7000/.164836 = .3466. This SD makes the .405 adequate for heavy, thick-skinned game.
(Our buffalo -[bison] may not be as hard to kill as a cape Buffalo, but it would not surprise me to find that they are! They certainly weigh as much, or more!)
Here's some Hodgdon data for the .405 with 400-grain bullets.
400 GR. WDLGH RNSN (Starting Loads)
DIA. .411"
COL: 3.085"
VARGET
48.0
1790
[align=right]
37,000 PSI[/align]
H4895
45.5
1801
[align=right]
37,100 PSI[/align]
H4198
33.0
1582
[align=right]
33,600 PSI[/align]
400 GR. WDLGH RNSN (Maximum Loads)
DIA. .411"
COL: 3.085"
VARGET
52.0
1928
[align=right]
44,300 PSI[/align]
H4895
50.5
1945
[align=right]
44,900 PSI[/align]
H4198
36.5
1718
[align=right]
43,400 PSI[/align]