405 pressures

[rimfire458]

Got a 405 win 95 coming circa 1904. Using the usual 300 gr hornady interlocks in hornady brass. All the loadings tell the pressure generated by the load, I just don't know where the max is

 

[mbogo3]

Why worry about the MAX pressure it can take .Just use the load data for the Win 95 and shoot.You must be using a Hodgon book.Harold

 

[rimfire458]

Why worry about the MAX pressure it can take .Just use the load data for the Win 95 and shoot.You must be using a Hodgon book.Harold

Lot of difference between 1904 and 2004 as far as steel development, but to my way of thinking it must be the ole 45/70 story all over again. What I mean is, I'm sure their load numbers are more in tune with the older steel so as nobody gets blown up. That make any sense?

 

[sunray]

.45-70 is loaded down to BP presures due to the assorted TrapDoors etc. out there. Never heard of .405 Win being loaded down though. It was never a BP cartridge. It was introduced with the 1895 Browning and isn't terribly high pressured to start with. Max on Hodgdon's site for a 300 grain bullet is only 44,500 PSI.
You don't need to worry about a 110 year old rifle being frail if it's in decent condidtion.

 

[rimfire458]

SAAMI says
36,000 max

Turn of the century smoke less powders were nowhere near the ones of today, nor the steel quality. As much as I'm no fan of the miruku models the science of steel has advanced considerable in over a 100 yrs

 

[mbogo3]

Would the .405 caliber 95's not be "nickle steel" ? They made them in 7.62x54R did they not? Harold