View Full Version : H450
tbierley
06-10-2015, 09:34 PM
I did a small job for a buddy. He gave me 8 pounds of H450 yes I have not seen this for years. Is this a good powder?
dougader
06-10-2015, 10:16 PM
I burned up a pound of it in the very early 1990's in 30-06. I got it free from Hodgdon in some kind of promotion. It seemed to work fine but I switched to IMR 4350 and never looked back.
tbierley
06-10-2015, 10:50 PM
Is this powder to slow to run in my M1.
richhodg66
06-10-2015, 11:03 PM
I remember it worked well in my 6mm, but not as well as Winchester 760. Still, 8 pounds of it is a good deal.
sargenv
06-11-2015, 01:19 PM
I used to use it for my 300 magnum.. I think it's more along the lines of 4831..
frnkeore
06-11-2015, 02:23 PM
Yes, it does have a burn rate near H4831.
The 6mm Rem likes 48 gr with a 85 gr bullet and 47 gr with a 100 gr.
The 6mm Rem Mag, also likes it with 140's.
I've heard that near to full case loads in the '06 is a accurate load but, I would stay away from M1 loading with it. It could bend the operating rod.
Frank
gpidaho
06-11-2015, 04:13 PM
I like H450, meters better than any other powder in my RCBS powder thrower. I was gifted a couple pounds and use it in cartridges where you would use H4831. My 25-06 really likes it, if they still made it I would buy some more. GP
clearwater
06-11-2015, 05:57 PM
I like H450, meters better than any other powder in my RCBS powder thrower. I was gifted a couple pounds and use it in cartridges where you would use H4831. My 25-06 really likes it, if they still made it I would buy some more. GP
220 grain j's in 30-06 bolt
175 grain j's in 7mm mauser
any weight bullet in 25-06 or 25-284
all sub moa, better accuracy than retumbo or varget in these guns. Similar to I4350 or Rx19.
Lee's book even lists some cast loads.
dougader
06-12-2015, 01:24 AM
Is this powder to slow to run in my M1.
Yes, too slow. You risk bending the op rod. Look to powders closer to 4895, 4064, etc.
runfiverun
06-12-2015, 01:26 AM
it's replacement is rl-19.
I have a jug of H-450 here and use rl-19 data when I can't find anything in my older books.
4831 is close but not quite close enough.
frnkeore
06-12-2015, 03:43 PM
I have a suspicion that H450, maybe the same as the slow lot of WC852. What do you think?
Frank
runfiverun
06-12-2015, 07:15 PM
the 450 looks a lot like AA-3100.
I remember it had a tendency to act up under certain circumstances, but was THE powder in some cases.
I think I remember the slow 852 as using 4831 data. [which would put it right where 3100 is]
accurate used to make DATA powder available which I'm sure was gov. contract over runs.
I also have a jug of data#9 here and I just use accurates data for #9 without issue.
someone had to make the stuff [powder manufacturer] and I don't see them doing a special run of almost this or that, but doing a run of something [normal] that is huge [and shoulda been canister this] but had small variations because of price, sheer volume, and batch processing variations.
frnkeore
06-12-2015, 08:40 PM
I've always considered WC852 to be H4831 speed.
I have both powders (WC852 & H450) and I'm just about to rechamber my High Wall from 30/40 to 30/40 Imp (30 deg shoulder). When I get that done, I'll chrono them together and report back.
Frank
runfiverun
06-12-2015, 11:36 PM
I have been slowly picking and poking at the H-450 in my 303 brit rifles.
it may be that they don't like the powder or the bullet I'm using.
but the one is a very accurate rifle when fed the right diet, so far it plain out won't shoot the bullet that the argies and the 7.7 will shoot incredibly well.
no big deal I always got the 25-06's to burn it up in.
Airman Basic
06-13-2015, 12:18 PM
Seem to remember way back that 450 had some unexpected pressure problems and everyone steered clear of it. Anybody else old as me? Still have a few pounds of it and used to use a lot of it in the "overbore" rounds.
runfiverun
06-13-2015, 09:36 PM
I remember there were some situations where it would spike pressures suddenly.
I can't remember for sure what those situations were.
but I know it happened, and they dropped the powder.
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