9mm super?
- Thread starter DA/SA Fan
- Start date
Crankgrinder
New member
357 sig?
IllinoisCoyoteHunter
New member
To try and go "nuclear" in a case with such small capacity after a bullet is seated is not smart. Your margin for error is slim...very slim. If you want to shoot 35 cal bullets at "nuclear" levels, I would rethink cartridges.
9x25 Dillon comes to mind.
9x25 Dillon comes to mind.
CAUTION: The following post includes loading data beyond or not covered by currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.
I have converted a Tokarev and a Star Super B to 9x23.
I work up to the limit of Winchester brass and to the limit of Starline 9mmSuperComp.
I have worked up 9x19mm to the limit of the brass.
I have worked up 380 to the limit of the brass.
It takes a lot of slide mass and recoil spring force to deal with what even 380 brass can do: 1185 fps 158 gr.
When the chamber walls are thick and the case support is good, the recoil will become horrible before the bass gives up.
Ways to deal with some of the increased recoil:
1) Triple recoil spring assembly
2) Double magazine spring in parallel to be fast enough to keep up with the recoil spring.
3) Add mass to the slide.
4) Stiffer trigger spring to reset faster
I have converted a Tokarev and a Star Super B to 9x23.
I work up to the limit of Winchester brass and to the limit of Starline 9mmSuperComp.
I have worked up 9x19mm to the limit of the brass.
I have worked up 380 to the limit of the brass.
It takes a lot of slide mass and recoil spring force to deal with what even 380 brass can do: 1185 fps 158 gr.
When the chamber walls are thick and the case support is good, the recoil will become horrible before the bass gives up.
Ways to deal with some of the increased recoil:
1) Triple recoil spring assembly
2) Double magazine spring in parallel to be fast enough to keep up with the recoil spring.
3) Add mass to the slide.
4) Stiffer trigger spring to reset faster
Thanks Clark. Since the Winchester brass is more stout than normal 9x19 I was wondering if there would be much gain over a 9mm +P+. Obviously wouldn't be as potent as a full load 9x23 or 357 Sig but wondering if it might be a worthwhile step up for a small frame maximum capacity (9mm) handgun. Since you've "played" with high test 9x23 and 9x19 what would be your guess?
603Country
New member
Clark, did you really get a 158 gr bullet to 1185 fps out of a 380 case? Is that even possible? Gotta say that's almost a "hold my beer and watch this" moment. Personally, I'll stand over here behind this big oak tree while you shoot that load.
DA/SA,
Winchester 9x23mmWin brass is built like rifle brass with thick web and thick tapered walls coming up from the web. That kind of case does a lot of good in 40sw, 10mm, and 45acp where there are terrible case support pistol barrels everywhere, but the 9mm pistols seem to not need heavy brass.
I weighed some 9x19mm brass for this post:
RP................. 58.0 gr
RP +P+ Nickel 58.5 gr
FC Nickel....... 53.7 gr
FC +P+ Nickel 53.3 gr
FC +P+ Nickel 53.7 gr
The RP brass has a 0.16" thick web in the case head.
Most 9mm pistol barrels have no more than 0.19" of feed ramp intrusion disruption of case support.
Beretta 92S 9mm .163"
Kel-Tec PF9 .190"
Kel-Tec P11 .190
Glock 19 9mm .190
Star Firestar .165
CZ52 9mm aftermarket .145
Tokarev 9mm .160
I have mostly worked with the Kel-tec P11 and primed RP 9mm brass to work up with all the bullets and all the powders.
603 Country,
Yes I did that, for only two shots over the chronograph. That was during my 15 handgun shots per chronograph period in my life.
CAUTION: The following post includes loading data beyond or not covered by currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.
Range report 8-9-2003
M1903 [Husqvarna 1907 9mm Browning bushed to .380] 5" barrel
1) Winchester factory 380 ammo 95 gr. 805 fps
2) WSP, 8.5 gr. Power Pistol, 158 gr. XTP, seated to 1.090", 1158, 1187 fps
I classify 380 into (3) levels.
Better case support and heavier slides get the hottest loads as seen above.
The Ruger LCP and Kel-tec P3AT get the wimpiest loads that are equivalent to Buffalo Bore +P 380... 1100 fps 90 gr Gold Dot
Winchester 9x23mmWin brass is built like rifle brass with thick web and thick tapered walls coming up from the web. That kind of case does a lot of good in 40sw, 10mm, and 45acp where there are terrible case support pistol barrels everywhere, but the 9mm pistols seem to not need heavy brass.
I weighed some 9x19mm brass for this post:
RP................. 58.0 gr
RP +P+ Nickel 58.5 gr
FC Nickel....... 53.7 gr
FC +P+ Nickel 53.3 gr
FC +P+ Nickel 53.7 gr
The RP brass has a 0.16" thick web in the case head.
Most 9mm pistol barrels have no more than 0.19" of feed ramp intrusion disruption of case support.
Beretta 92S 9mm .163"
Kel-Tec PF9 .190"
Kel-Tec P11 .190
Glock 19 9mm .190
Star Firestar .165
CZ52 9mm aftermarket .145
Tokarev 9mm .160
I have mostly worked with the Kel-tec P11 and primed RP 9mm brass to work up with all the bullets and all the powders.
603 Country,
Yes I did that, for only two shots over the chronograph. That was during my 15 handgun shots per chronograph period in my life.
CAUTION: The following post includes loading data beyond or not covered by currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.
Range report 8-9-2003
M1903 [Husqvarna 1907 9mm Browning bushed to .380] 5" barrel
1) Winchester factory 380 ammo 95 gr. 805 fps
2) WSP, 8.5 gr. Power Pistol, 158 gr. XTP, seated to 1.090", 1158, 1187 fps
I classify 380 into (3) levels.
Better case support and heavier slides get the hottest loads as seen above.
The Ruger LCP and Kel-tec P3AT get the wimpiest loads that are equivalent to Buffalo Bore +P 380... 1100 fps 90 gr Gold Dot
