As stated earlier, 40cal and above is legal in this state, so obviously there are others who believe it is "enough". So, I don't see a problem.
I've not weighed one, but my Lyman BP handbook lists the .445 RB at 133 Grs.
The Lyman BP handbook also provides maximum recommended loads.
Numrich arms:
45cal GO 45-55Grs FFg
TC
45 cal Hawkin the Seneca is listed lower
Dupont
440RB do not exceed 110gr. FFg
Tingle
45cal rifle Dupont 75grs FFFg
Green River Rifle Works CH FFg
45 cal Suggested load 70gr max load 100gr.
H & R max load in 45cal 100gr FFg
Navy arms is sorta out there by themselves
"The following is a list of suggested maximum loads or the Hawkin rifles that are made in the USA. 45 and 50 cal-150grs FFFg powder behind a 500 gr projectile."
They seem to be on an island.
Looking at the load data for 120gr loads the data shows
120gr FFFg C&H
MV 2046 ME 1234Ft/Lbs
100 yds energy 346ft/lbs
If you look at FFg GO
100gr FFg is the highest load listed
MV 2008fps ME 1189ft/lbs
100yds energy 335ft/lbs
The highest load listed for FFFg GO
is 75grs
MV 2025fps ME 1209ft/lbs
100yd energy 341ft/lbs
These are from 28" barrels.
This is an old manual, at the time it was the best I could find. Things may be different now, dono. This is what is was when it was printed.
Added; CR was 1975
Last edited by AJD; 08/21/10.