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

Oh yeah ...
The 450-gr TSX is a great bullet if you do not have a 404-gr Shock Hammer.
I still have not beaten AA-2230 and AA-2460 with either of those bullets for top speed,
though there are many powders yet to be tried.
Heavily compressed H4895 might do it, but that is a bit of a bother.
Other powders can clean the bore and might be more temperature independent,
and the ball powders do pack better, etc.
Really, anymore than 2300 fps MV with 450-grainers is gravy anyway.
That might be possible with CFE 223,
and I hope Sir Matt will try it and report here on chronograph results ...













Here is a medium speed load with compressed H4895 and the 450-gr TSX,
loaded with long COL, so seating depth is about like the Hornady RNSN above:



Compare the Alliant Varmint powder to CFE 223,
both with same rifle, same day, same 500-gr RNSN at 3.480" COL,
Varmint is faster with less powder too.