.357 powder question

[ArchAngelCD]

Are you sure you got that date correct? I just looked at the current Hodgdon data and with a 180gr bullet (jacketed) it gives max on H110 as 13.5gr and 4227 at 13.7gr. 18 and 20 gr seem like a lot of powder for .357 mag. I know that data for cast and jacketed will differ, but 5-6 grains? Not doubting what you read, but I've been loading a bunch of 180gr coated cast getting ready to shoots some hogs and the max load I've found for H110 is around 13.5-14gr. Ive settled on 13.5gr as it is pushing the 180 cast at just over 1250fps out of a 8 3/8" barrel and is extremely accurate. All my records are out in my loading shed, but I'm pretty sure you get close to same velocity with around 12.5gr of 2400.

Very good catch sir. The free yearly handout book is very condensed and I read it wrong. The data was for thev.357 Max, not .357 Mag. Thanks for checking on me. This is why I try not to post data, mistakes can and will happen.

I corrected my above post to remove the data...

 

[FM12]

Consider alliant Herco.

 

[Glockula]

I have loaded a fair amount for a 16 inch rossi .357mag. 2400 is my go to for full house 158s and 125s. I use Unique for light and mid range loads. Accuracy has been great and I have no doubt about the ability to kill medium game 100 yards and in. I just got some Lilgun for 300 blk and may try it but 2400 ain't broke so I don't intend to fix it.

 

[Varminterror]

Most guys don’t shoot a revolver enough for Lil’ Gun to do damage, but it’s good to avoid the opportunity. What I DON’T understand is why guys overlook the reasons Lil’ Gun damages a revolver when they stuff it into their leverguns. The increased glycerin content and extreme heat is bad for revolvers, and equally bad for rifle barrels. We just can’t see the throat erosion as readily as we can see forcing cone erosion.

Personally, H110/W296 is my go-to powder for all things straightwall revolver. It’s faster and more accurate most often than 2400 or 4227, more readily available most of the time than AA#9, and a lot cheaper and more broadly available than VV N110.

 

[Charlie98]

I may be wrong, but it seems to me that in loading 140 & 158 gr .357 magnum for max performance out of my Henry Rifle with a 20" barrel, I would get the best results with slow(er) powders. The two I have been using with good results so far are IMR-4227 and H110.

Are there any other good powders that might squeeze a little more performance out of a long barrel where the charge will still fit in a .357 magnum case?

You are probably already there with H110/W296. I load .41MAG for my Marlin 1894, although W296 gives me maximum velocity, I use primarily IMR4227... I get better accuracy with less blast. As was mentioned, 2400 would be another good choice in the rifle-length barrel, but you probably won't get maximum velocity. There are also others who swear by AA#9, but I would compare #9 to 2400 and IMR4227, not H110/W296.