9mm WST and RMR 124gr MW test

This is a continuation of the WSF test using WST.

All shot using my Ranson Rest that I built. All these loads self reset after each firing. All I had to do was pull the string every 5-10 sec.

Shot out of 1911 that I built, Kart barrel.
Temp upper 60's, Wind 10-15 at my back.

WST , Dispensed using a RCBS 1500
Win Brass
WSP
RMR 124gr MW
@1.120" OAL
Crony Data taken at 5', data on target.
Target has 2" BE with 1" outer rings, at 25 yrds.

4.8gr WST


4.9 gr WST


And the winner again is
5.0 gr WST


Found a leaf spec under the arm of the sled after shooting. This may explain the shift in elevation on this one.

5.1gr WST

The group started opening up.

I need to setup a spotting scope to see where the bullets are hitting. Then I may be able to figure out why I'm getting a little more scatter than I expect.

 

Thank you. Interesting and informative. Please continue to contribute.

 

Thanks for continuing ransom rest testing and posting WST data.

BTW, since Hodgdon does not publish load data for WST and 9mm, here's Hornady #4 load data from the "WST Published load data for 9mm" thread - https://www.thehighroad.org/index.p...er-target-published-load-data-for-9mm.870180/

• 9mm 124 gr FMJ WST COL 1.150" Start 4.8 gr (1025 fps) - Max 5.4 gr (1100 fps)

 

That 5.0 gr of WST is going to be one of my "next to be tested loads".
Thanks for your hard work on this. I'm anxious to try this but have to get some more Match Winners first.
TT

 

My velocity is already over 1100fps with 5.0 gr. the reason I stopped. Not seeing any real pressure signs though.

This Kart barrel has just over 1100 rounds through it.. It's sped up some since it was new.

I'm getting just as good and maybe a little better using the WSF at 5.0 gr.

 

I have both powders so I can try them side by side to see which works best for me.

 

Yes, WST is reverse temp sensitive.

I use WST in 45acp with MBC 185gr and 200gr LSWC. My loads are 4.1gr for the 185gr and 4.2 gr for the 200gr. If I recall these are in the 650 fps range.