WTK: Hornady 175 Sub-X load Data for 300 BO

[ARlife4me]

The 175 subject are more of a sub for 30-30 design. Doesn't mean you can't make them subs in 308win or 300bo.

 

[QuietTexan]

Any suggestions on load data?

190gn Sub-X, 16" barrel:
7.3gn H110, 684FPS
8.1gn IMR 4227, 612 FPS

You should be able to work down with the 175gn just fine, by those charge weights you should be subsonic.

DOWN repeat WORK DOWN. You should be comfortably supersonic at 9.3gn of H110 and 10.1gn of IMR 4227, and able to move slower from there.

 

[338 dude]

Which # is that

That is the 11th edition

 

[ARlife4me]

That is the 11th editionView attachment 545229

Are there 175sub-x listed in 30-30?

 

[338 dude]

Are there 175sub-x listed in 30-30?

I don't believe so the highest it goes is to 170 grain bullets. The lower end of the charts for velocity is 1800 ft./s. No sub-x

 

[waspocrew]

I'd sent an email to Hornady or give them a call - they might have the info you're looking for.

 

[ARlife4me]

I don't believe so the highest it goes is to 170 grain bullets. The lower end of the charts for velocity is 1800 ft./s. No sub-xView attachment 545230

Is there any 30cal 175subx listed in data

 

[Weaver93]

Is there any 30cal 175subx listed in data

11 ed doesn't even list a 175 Sub x in either pistol or rifle data or bullet guide that I see

 

[338 dude]

Is there any 30cal 175subx listed in data

Just started to look there are many 30 calibers listed. The only one in 300 blackout is a 190 grain sub X.

 

[338 dude]

None that I could find with the proper weight you were asking about

and I have some of these,7.62 but again, not the weight you have specified.

 

[Mike6158]

I guess nobody ever found load data for the 175gr Sub-X and 300BLK? I've loaded 190 Sub-X's in 300BLK and .308. I found some 30-30 data but there is a good bit of difference in case capacity between the 30-30 and 300BLK. But, if looking for supsonic velocity, I might be able to work down from the minimum 30-30 charge. I may see what I can do with that today.

I've got some 150gr Sierra Pro Hunter bullets. I wonder what that would look like supersonic in the 300BLK?

Looking through the Sierra load data for 300AAC it looks like I can get about 1,750fps with H4198. Not the most exciting finding but AA1680 will get me to 1,950 fps (book value), which is a little better. If I test it'll be with a bolt gun not AR though.

 

[wvbearhunter]

I have been on the 300aac bandwagon since is was 300 whisper. 176 is on the low end for subs and the sub-x I tested were very disappointing. The 200 grain Maker Rex and the Lehigh 196 grainers have all been excellent. I used an entire box of Sub-x in load development and never found a suitable load that was accurate and still got any expansion.

I tried H110, Lil Gun, 1680 and Trail Boss.

 

[Mike6158]

Yup, l load 190 Sub-X's in .308 and 300AAC. The shoot better in the .308.
I'm going to try shooting the 175's at 1,600 - 1,750 in the300 AAC

 

[Mike6158]

I found this from load test from earlier this year. I've about decided that good ES and subsonic don't go together.