a little help, I inherited a .500 special /.500 GNR which is a

[GLynn41]

500 Linebaugh trimmed to 1.25,,, my question is about powder-- I have a lot of HS6 any Idea about where to start with it. This not for max loads, it is a 370gr at 900 to 1100, perfect cast boolit range. You can add another 150 -200 fps. No interest in that. But for some who only owns .41 mags--- that is very sporty to me. My old Grey hawk mz loader gave me 1250-1300 with a 370gr in a rifle. I have other powders...but wanted to be able to use this if I can. If not that is ok too

[rintinglen]

The only 500 I've ever worked with was a 500 S&W belonging to a co-worker who had bought it for protection against bears. And we did not use HS-6. But were I in your shoes, I would start at about 12 grains, load two, shoot them and measure velocity. I would check the casings carefully to see if they were expanding enough to prevent blow-by, or if the were relatively clean. I would then adjust the load up or down until I got the velocity I wanted. I suspect that you'll end up somewhere in the 14-17 range, but that is merely a guess on my part. Hopefully someone with some actual hands-on with this caliber will chime in.

[GLynn41]

sounds reasonable--- it can be far more gun than I want to shoot-a 440 at 1200-1300-- I will use a 370 gr thank you very much @ 1100
Blue dot in it is in that range, unique too-- I have 3# of HS6 pounds so investigating
Gary's loads are still a little warm for me...

[Cosmic_Charlie]

Well, try some Unique and load for accuracy and comfort. Once you can hit good with it you can lay in some heavy engine block busters.

[DHDeal]

Out of curiosity, what type of gun is this?

I suspect HS6 will be about prefect for the weight bullet and velocity range you are looking for. My only issue with HS6 is when I tried to go too low. Even then it gave decent accuracy, but it fouled a lot. When it got up into it's sweet spot, accuracy was as good as I could expect and fouling was light. As you already have some, you probably already know that.

If this is for a revolver (I hope so) then sure you can load it hotter. There are few things more fun than a revolver ending up with the barrel pointing straight up after firing it and maybe twisting in your hand quite a ways. I'm joking of course.

[clintsfolly]

Contact Jack Huntington at JRH Advanced Gunsmithing. He has a load sheet for this!

[GLynn41]

The five gun is Gary's prototype single action for the 500 GNR, with all his bells and whistles so to speak with his gun fighter grip. AS long as I wear a glove its ok but for me
I have shot 325 gr jhp at 1500+OUCH
44Ogr at 1300 ouch
the 375s at 1100 is my goal using fluffy powders or my HS 6
I read to try 14 gr of HS6 so I will
I am a .41 fan so this a learning experience... BTW Trail Boss is way to little as I will hunt deer with this