300 wsm 175 lrx staball 6.5

[Packmansion]

Looking for guidance developing a load for 300 wsm with staball 6.5 and 175 lrx and wlrm primers. The only data i can find is from hogdon for 175 sierra hpbt and 180 grain nosler e-tip

For 175 it is 63 to 68.3 grains
For 180 e tip it is 60 to 66.5 grains

I have a chronograph so i can track velocity and my rifle is 20" so i expect 100 fps less.

Does anyone have load data they can share or PM me or verify the above starting charge weights are within reason?

Thank you!

 

[pods8 (Rugged Stitching)]

60gr seems a safe/conservative start, load a single round at 60gr, 61gr, 62gr, etc and shoot over the chrono as your sanity safety check and get a feeling for what your component combo is delivering for velocities and find your upper end. Back off from there and load groups to test in your preferred method.

 

[mpwolf]

It seems like it should be a good fit for the case. I’m curious how it would work with 185 juggernauts.

 

[Fireflyfishing]

Hit up Barnes direct. They’ll help you out.

 

[sndmn11]

 

[wirehead]

22” tikka 300 wsm

68.3 gr Staball 6.5.
Unfired norma brass
175 LRX

3125 avg velo

 

[Packmansion]

22” tikka 300 wsm

68.3 gr Staball 6.5.
Unfired norma brass
175 LRX

3125 avg velo

View attachment 763458

That is pretty sweet!

 

[Packmansion]

Got mine up to 68.3 grains and 3000 fps. You guys are cooking! Based book you guys are exceeding 24" velocity. im wondering if it is the primer. I am using wlrm. Accuracy is there but my velocities were all over the place it is a new barrel so ill clean it and shoot more and see whats up. I might go higher, my throat is a little longer and im seating my bullets a good ways out so i might seat in further to fill the gap.

 

[wirehead]

Got mine up to 68.3 grains and 3000 fps. You guys are cooking! Based book you guys are exceeding 24" velocity. im wondering if it is the primer. I am using wlrm. Accuracy is there but my velocities were all over the place it is a new barrel so ill clean it and shoot more and see whats up. I might go higher, my throat is a little longer and im seating my bullets a good ways out so i might seat in further to fill the gap.

I’m using federal LRMs.

 

[A382DWDZQ]

I loaded some 175LRX in my Tikka T3 24”, and they were a lot faster than expected and they shot well too…

 

[A382DWDZQ]

Ps, I emailed Barnes with a similar question and they said to just use starting load for a jacket lead bullet and that would be fine.