colt_saa,
I concur,
I spoke to Paul Nowak at Winchester; he's been with them about 30 years.
He told me to use Western Powders Inc., "RAMSHOT SILHOUETTE".
That powder is the EXACT same powder (Winchester Action Pistol) that Winchester used in the 9 m.m x 23, 125 gr. Silvertip Hollow Points.
And in Winchester's own words, "The strongest case ever built for a center fire cartridge".
Amazing how much the .223 case and a 9x23 Win. case look alike when dissected.
I decapped 50 rounds of the Winchester factory Silvertips to weigh the load.
My rounds had 8.6 - 8.8 grs. of powder.
The powder I pulled from the factory rounds looks EXACTLY like the Ramshot Silhouette powder.
I was able to find one pound in the next state.
Then I spoke to Johan Loubser, Ballistician, Ramshot / Accurate Powders
Tel: 406.234.0422 email:
[email protected]
Western Powders Inc., Miles City, Montana
He confirmed what Paul Nowak @ Winchester said;
Bad_Man_One,
SAAMI confirmed the <55000Psi.
In that case we would suggest the following as generic data.
Caliber: 9 m.m. x 23 Winchester.
Barrel length: 5”
COL: 1.300” Min. (We suggest making the COL as long as possible to create the maximum case volume)
Pressure Spec: <55000 PSI / 3792 Bar (SAAMI)
Powder: Ramshot - SILHOUETTE®.
Bullet weight: 124-126 grains. Typical RN lead/cast bullet COL ca 1.300”
Start load: 7.5 grains (ca 1225 Ft/p/sec)
Maximum load: 8.9 grains (ca 1430 Ft/p/sec) LD ca 94% PF ca 179
Primer: Small Rifle
NOTES:
It’ important to note that SAFETY is our prime concern therefore we strongly recommend.
1. ALWAYS BEGIN LOADING AT THE RECOMMENDED MINIMUM “START” LOAD and develop loads in 2% increments towards the MAXIMUM load.
2. CAUTION: Beware of double charging if the loading density is below 50% of the available volume.
Example: Most Handgun caliber/powder combinations
3. If possible, measure the velocity and correlate with our data.
Regards,
BM1