Texas Sheepdawg wrote:The way I see it, if a guy can kill a brown bear with a 175 grain 7mm Rem Mag at 200 yards, the Thumper will be even more effective with a 230 grain at the same distance. And it should be a BANG FLOP.
wildcatter wrote:...snip...I've loaded to 2100fps (Yuppers, 1680 and the LeGendre Side Crimp are the trick here)...snip...ya might want to start a new thread in the reloading section and save this thread for Safety Concerns...snip...the least of your worries will be a broken gun..
Cliff R wrote:"Cliff...wildcatter's been there, done that with the load you're talking about. I'm fiddling around with the same idea, using 325gr Barnes Busters. Use Remmy 7 1/2 primers and A1680 powder. There is a post about this very thing in the forums here...use search function and you should be able to find a lot of discussion about the heavier loadings. 1800fps is eminently do-able; 2000fps and above involves messing with the upper's hardware a bit, but can be done. Again, see wildcatter."
Many thanks, I'll take a look.
As for this particular topic, loading heavier bullets will increase pressure, all else being equal. They are harder to get moving, more sectional density, and more of the bullet engaged in the rifling (not always true with boatail designs). This can cause pressure "spikes" as we are working up a maximum safe working load. I've ran into this with smaller high velocity calibers, but not so much with the 45/70, which I have a lot of experience with.
I'm hoping that the 450 mimics the 45/70 as far as being able to duplicate or exceed the factory loadings while keeping things well within the safe zone.....Cliff
45-70 shooter wrote:Dare I mention that while there is a paucity of loading data for the 450 BM, there is TONS of it out there for the 460 S&W Magnum.
The 460 is a slightly longer case BUT when you consider the deep seating and hard crimp needed to fit in an X frame S&W, the powder capacity (primer to base of bullet is very close. Generally the S&# loads use more powder because Hodgen tested in a 10.743" pressure barrel...... 9.3" of barrel on the 450 will burn more powder rather than light up the night sky (ask me how I know).
So dig out your 460 data,consider the pressure limits of both cartridges and load em' up.
There is nothing especially dangerous about hand loading any smokeless cartridge if you can RTFI and follow them.
Shooting a large bore flinter with real black powder is far more dangerous. Ever seen a guy with a hole in his palm from a ramrod ? OUCH !
Classic failure of not RTFI !
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