Questionable load data.

[Obturation]

Hey all,

Hope everyone's feeling good.

I'll start by saying I use h110 with relative frequency , it's a powder I'm comfortable with and reasonably familiar. Usually go through about 2# a year, I know it's not a ton but that is enough to know what's appropriate and what to expect .

The thing that seems consistent in load data for h110/w296 is that minimum & maximum charges are pretty close. It's not a powder to download, we all know that.

I was going through some loose sheets of load data I've accumulated over the years and I found the data provided by Oregon trail for their 360 grain gc .452" bullet and found the data interesting . looks like this-


The spread from min to max is 5.5 grains, about 20% or so (not a math guy). My understanding is 10% or so is the most you would ever download h110, maybe I'm wrong on that.

My load for that bullet has always been 25 grains which is good but I obtained that data from another source and the bullet makers data wasn't used at all, I just keep all the load data I cone across. I would have gotten that data about 3-4 years ago so not really old or outdated .

What do you all think of that?

 

[N555]

I agree, if I was looking for 1,000 1,100fps I would switch to something faster burning.
The correct amount of H110 is usually nearly full (with the bullet seated), full, or slightly compressed.
If you can hear or feel the H110 shaking around inside the loaded round you didn't use enough.
AA9 would be perfect.

 

[LaneP]

I have 50 of those exact Trueshot bullets but have yet to load and shoot any. Hodgdon shows a 21 gr start charge for a Cast Performance 360 FNGC, going to a max of 24 gr. If I ever get a round 'tuit, I'll probably test 22 gr H110 just to see how that feels and groups and work from there. I've been on a BP and 9mm kick but need to break the .454 back out. If you're running 25 gr and no pressure issues then sounds to me you are good to go.

 

[Obturation]

I have 50 of those exact Trueshot bullets but have yet to load and shoot any. Hodgdon shows a 21 gr start charge for a Cast Performance 360 FNGC, going to a max of 24 gr. If I ever get a round 'tuit, I'll probably test 22 gr H110 just to see how that feels and groups and work from there. I've been on a BP and 9mm kick but need to break the .454 back out. If you're running 25 gr and no pressure issues then sounds to me you are good to go.

Yeah, I worked up to 25 grains from 23 . fired about 70 of the 25 grain load and I'm happy with it, stout cartridge but no signs of over pressure.