Byron

Dear Gentlemen, Thank you for your information. With your premission, I would like to continue this discussion. My desire to upgrade the power of this little shooter is to reach an optimum level of performance with the minimum fuss. I live on a small 80 acre farm in Kansas where targets present themselves on a regular basis. This folding carbine is handy and easier for me to hit with that a pistol. Targets range from pine cones to fat raccoons and feral dogs. GI hardball is fine on the pinecones but lacking on the others. Federal Hydroshocks shoot fine but only reach 1250 in the 16" barrel. I want more velocity to flatten the trajectory. Basically, to match full-on three five seven Magnum power as well as see just what these guns will do. That will be plenty of power for Raccoons. I would like to match the Hertenburger 124 gr subgun load with 124 grain Gold Dot type bullets. This load measures 1600 fps with SD in single digits and very fine accuracy. The manufacturer has stated to me that the gun is rated for unlimited use with submachine gun ammo so I consider 124@1600 is my safe baseline. The fired brass from my present loads....125@1500 and 147@1400 show no excess pressure signs. Primers are WWSR and look fine. No web expansion greater than factory 9mm in the same gun. The books rate somewhere around 6.7 grs Power Pistol at 34K. Is there an SWAG out there as to the pressure of the Hertenburger load as well as mine using 7.1 grs of Power Pistol and 124 gr Gold Dots. I know there are many dynamic varibles in the pressure equasion, ie. seating depth, case capacity bore diameter and condition etc. Still, a ball park figure? I note that few of the 9mm Major shooter use Power Pistol. Loading 9mm Major appears to have some level of alchemy involved in addition to engineering. Is there one powder that gives consistant performance that will be better suited for my needs that Power Pistol? Enough. Thanks in advance. Byron

Dear Friends, I am new to this forum, referred to you guys from my buds at Sixguns. The focus of that board for those who do not know is revolvers, mostly .45 and bigger. If you can't stick your finger down the barrel and the bullet doesn't weight at least 350 grains, it is considered a small bore. Regretfully, one of my favorite shooters is a 9mm Keltec folding carbine. This labels me as an outcast from the .500 shooters. My quest is the optimum 9mm carbine load. At present, the absolute top load is the Hirternburg 124 gr. subgun load. It truely chronos at 1600 fps at 15' and runs the carbine perfectly. Accuracy is at good as many bolt action rifles. I desire to match this performance with a 124 gr JHP. Reading your posts on making major 9mm I see lots of esoteric comments about dwell, dot movement, etc. You guys clearly have lots of experience on high end 9mm. These subjective variables do not interest me. I am looking for power and consistancy in a 9mm carbine. I am looking for the absolute top performance for 9mm in carbines rated for unlimited use with buzz gun ammo. At present the best performance is with Power Pistol. It will easily reach 1500 fps with a 124 gr Gold Dot and 1400 fps with a 147 gr Winchester JHP. This is with WW small rifle primers and WW brass. Accuracy is good with both loads. Still, reaching 1500 with the 124 gr bullet requires 7.1 grains of Power Pistol which is in excess of the recommended load. Everything looks great but its still way over max based on the books. Again, what powder is best for top end highly consistant loading for 9mm carbine ammo? What is the top velocity that can realistly be reached with 124 and 147 gr bullets and 16" barrels? I am a physician and a highly experienced reloader. I do not walk up on this level of pressure flat footed. Thank you in advance. Byron