9mm Ransom Rest Tests

A couple of years ago I built a full custom 9mm using one of the then new Clark 10-twist barrels.  The idea was to develop a 9mm gun/load combo that mimics the ballistics of the 38Sp wadcutter load. Doing that required 147gr bullets at about 700-750fps, hence the choice of a 10-twist barrel.  That worked out ok, as shown by one of the test groups below using my bullseye load.  For these current tests I put a heavier recoil spring in place and shot some full power loads using both Atlanta Arms ammo and some reloads.  All targets were shot at 50yds and are shown with an X-ring/10-ring overlay.  The gun, by the way, is currently shown in my Avatar.  I apologize for the improper rotation of one of the pics; I couldn't find a way to rotate it once inserted.

Thank you for your results. Thinking about the same idea. Have you tried Silhouette?

No, I have never used Silhouette in anything.

Silhouette was used by
Many of the Border Patrol guys in their 9mm 1911’s

Several loads are 10-ring capable at 50 yards in a great pistol!  Awesome.

I'm reminded of the videos that Accuracy-X posts that show 1" groups at 50 yards. Anyone know what load they're using?

S148 wrote:Several loads are 10-ring capable at 50 yards in a great pistol!  Awesome.

I'm reminded of the videos that Accuracy-X posts that show 1" groups at 50 yards. Anyone know what load they're using?

generally Atlanta Arms 110 gr loads..

james r chapman wrote:

S148 wrote:Several loads are 10-ring capable at 50 yards in a great pistol!  Awesome.

I'm reminded of the videos that Accuracy-X posts that show 1" groups at 50 yards. Anyone know what load they're using?

generally Atlanta Arms 110 gr loads..

I can't find a 9mm with 110 grain bullets on their website, just 100 and 115 grain in that weight range. Anyone know about their 110 grain load?

The AA 110gr load is gone.  They stopped a couple of years ago.  Steve had a "test" lot of it.  But Atlanta didn't produce it fully for the public.

I FOUND THE MOST ACCURATE 147GR LOAD AT 50YDS WERE THE FOLLOWING.. RANSOM REST TESTED IN MANY CUSTOM 1911's ( ROCK RIVER ARMS, TONY KIDD, SAMS), S&W PPC9's. ACCURACY WAS AROUND 1 INCH ON GOOD GUNS AND 1.75 INCH ON THE OTHER END .

147GR XTP 4.2 GR VV330, FED SP, NEW STARLINE BRASS, OAL 1.142"
147GR XTP 4.0 GR WW WSF, FED SP, NEW STARLINE BRASS, OAL 1.142" 

THE XTP BULLET A 50 YDS WAS THE MOST ACCURATE OF ALL. EXPENSIVE BUT WORTH IT. IT'S A BOAT TAIL BULLET. FOR THE SHORT LINE HORNADY SELLS IN BULK A BOAT TAIL 147GR FMJ. IDEAL FOR THE SHORT LINE. THE HORNADY 147GR FMJ USES THE SAME JACKET MATERIAL AS THE XTP. NO BARREL FOULING ISSUES WHEN SWITCHING BETWEEN THE 2 BULLETS. THE 147GR FMJ GROUPED ABOUT 2.5" AT 50YDS.

NEW BRASS AT 50YDS, ANY BRASS FOR THE SHORT LINE.
JP

Dr. Don do you have COL data for those loads?

Have you tried 5.3 CFEPISTOL with a 115 grain?  That shot very well for me in short range pistols.

Bigtrout,
COL data is as follows:
- 125 Sierra load -- 1.144
- 147 with CFEP load -- 1.098
- 147 with BE load -- 1.065
- Atl Arms 115 FMJ -- 1.106
- Atl Arms 147 JHP -- 1.099

Wobbley, I have not shot any CFEP with 115gr bullets yet.