.357 MAG with 2400

[ohman11]

I am loading a 110gr hp/xtp with 2400. My book shows 19.5gr of 2400 max. I load 19 and it is 1/8 from the top of the shell. Looks like a bit too much powder to me!

 

[308sc]

have you started with the recommended starting load?

 

[ohman11]

yes and its just about a 1/4 from the top. It just looks like a huge amount of powder in the shell. I have only used 2400 for .44 in the past and of course it didn't fill the case like this.

 

[308sc]

well I just checked Alliant reloading data on their website and for a 110 grain bullet 19.5 is max, so the load data seems to be correct.

I do 19 shoot fine in the gun? If it did then 19.5 should be fine, be sure your scale is calibrated correctly..etc

 

[ohman11]

I checked it 3 times because it looked so odd but the scale is on the money.

 

[rcmodel]

Your load weight is correct, and if you have worked up to it in your gun, it should be perfectly safe.

Lyman #47 shows a 110 Winchester JHP bullet, and 20.3 grains 2400 as max.

It is a compressed load, and 19.0 grains very well could be too.
I wouldn't worry about how it "looks".

rcmodel

 

[Dynamite Rabbit]

FWIW, Hornady shows (in the 7th edition book) 18.8 grains max with that bullet. In their 1973 book they showed 18.7.

 

[AgentAdam]

2400 takes 2-3 times the amount of powder/volume than something like Bullseye would use.

 

[Steve C]

My book shows 19.5gr of 2400 max. I load 19 and it is 1/8 from the top of the shell. Looks like a bit too much powder to me!

Proper start load is a 10% reduction from maximum, that would be 17.6grs for a 19.5gr max loading. Your best results will be obtained if you work the load up and not just go to the top load, thats only reduced by 0.25%. You will have no room to grow and if you get the wrong primer and case mix you can be well over pressure.

 

[Ben Shepherd]

With most magnum pistol rounds, you'll find 2400 is slightly compressed when you are at the top of the charts, regarless of specific slug weight or caliber. Nothing to worry about if you've worked up to it without trouble.

 

[buck460XVR]

when I first starting reloading, 2400 was recommended to me for loading .357 because it is virtually impossible to double charge. I load 158's with just a tad over 14 grains and there's barely room left for the bullet.

 

[loplop]

I like 158's with 14.2gr. A little thump, flash, and bang to let you know it's a magnum, without beating up your hand or your gun. Good stuff