Using H1000 or Varget instead of listed powders

Is it possible (and safe/ok) to use either H1000 or Varget powders instead of other powders? I was just looking on the Hodgdon reloading site and for a 458 winchester load, 350 gr bullet, they list several powders (benchmark, h322, h4198, h4895, imr3031, imr4198, imr4895, imr8208 xbr). Can I use Varget or H1000 powders to replace any of these listed powders for their respective loads?

I obviously won't do it if it's stupid and unsafe, but if it's completely possible, I'd like to try. Thanks.
 
Varget would the most suitable, its burn rate is close to but just a little slower than the powders you listed. H1000 is slower still, and while it would probably be fine, you won't get the same velocities as the others.

You'd be better off going with one of the powders listed. Using slower powders then intended will probably mean you'll run out of case capacity before you get anywhere near to max pressures/velocities.
 
May I suggest you buy some reloading manuals and do some reading before you load anything..........the questions you ask are absolutely inappropriate and although not in any danger in this instance, leads me to believe that you really need to do a lot more reading and gathering information before loading a single cartridge. If you have several loading manuals then it is quite likely that every suitable powder for a given cartridge will be listed and if it's not listed it's likely not suitable.
 
With that bullet, you could use up to a full case of either Varget or H1000, even a compressed load, and you would not exceed safe pressures. With Varget, I would not go below 45.0 grs, and with H1000, you risk unreliable ignition even with the full case, as the pressure will likely fall well below its optimum combustion pressure.
 
I am with c-fbmi on this one. Your questions suggest a lack of understanding of basic reloading safety procedures. NEVER EVER substitute one type of powder for another grain for grain. Follow the load directions printed in reloading manuals. You could be risking serious if not life threatening injures otherwise.
 
May I suggest you buy some reloading manuals and do some reading before you load anything..........the questions you ask are absolutely inappropriate and although not in any danger in this instance, leads me to believe that you really need to do a lot more reading and gathering information before loading a single cartridge. If you have several loading manuals then it is quite likely that every suitable powder for a given cartridge will be listed and if it's not listed it's likely not suitable.

Yes. Buy two loading manuals and read all the educational material at the front of the book.

Powders burns at various speeds. Large bores require faster powders. Big cases require slower powders. Each caliber will have a speed range of powder well suited to the bore size, case capacity and weight of bullet.

As it happens, Varget is usable, but a bit slow for best performance. If you have a lot of it on hand, go for it. You should be able to find data for it on line.

H1000 is very slow. Just slightly faster than damp mattress stuffing. You can use it too. No need to measure the powder. Just scoop the cases in the powder. Recoil will like a 22. Power about the same, too.
 
As others have stated these powders are not suitable for what you're after hence them not being listed. The more reloading manuals you can get your hands the better. At minimum you should have two one from bullet manufacturer and one from powder manufacturer. Anytime I think about subsituting any components or powders I reference all the available data and go from there. There are many variables to consider, burn rate being one of them. I would suggest not to take this situation as a free pass to substitute what you want where you want but consider starting out running everything exactly how the manual says.
 
May I suggest you buy some reloading manuals and do some reading before you load anything..........the questions you ask are absolutely inappropriate and although not in any danger in this instance, leads me to believe that you really need to do a lot more reading and gathering information before loading a single cartridge. If you have several loading manuals then it is quite likely that every suitable powder for a given cartridge will be listed and if it's not listed it's likely not suitable.

Totally inappropriate questions, your line of questioning does not reflect any knowledge in reloading.
Most manuals have basic reloading information, I think you should read before dropping any powder
or better still buddy up with someone who can home school you in basic reloading.
BB
 
Your choice of powders are not ideal for this cartridge specially H1000 and when in doubt just ask like you did , there are lots of experienced reloaders in this site that can help you and one of them says (Learn by the experience of others.... you won't live long enough to make all the mistakes yourself) :)
 
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