I don’t have the pressure testing equipment I’d like to, but from the 35,700 CUP data I’ve been using for many years none of the loads we’ll be discussing should even reach 35,000 CUP. I could hold OACL tolerances to +/- .001” or better so I dropped down to the next .5mm at 28.5mm/1.122” which allowed for .005” of freebore. I have found absolutely nothing that would suggest that poly-coating takes anything away from accuracy. The only problem is that Blue Bullet’s discontinued this particular bullet style that I describe as a 125 grain RN-SWC. I use Winchester cases by habit but others will work as well. The 124 grain XTP has a sectional density of .141 which I feel more comfortable with. This is because of pistols that may not adequately support the case-head. • Using the velocity and the diameter of the recovered bullet, his formula predicts performance in ordnance gelatin. It is ideal for this application. Regarding my 230 grain .45 ACP load, at 863 FPS it was barely contained by the 4th one gallon water jug. But my Lyman 48th Edition reloading manual says that for a 125 gr lead bullet the starting load of Bullseye is 3.3 gr and the max is 3.9. When I’m function testing, particularly if I have the range to myself, I’m going to rip through a few fully loaded magazines firing the pistol as fast as I can while being able to control the pistol: maybe even faster than what some might consider “Spray-and-Pray.” Something I would very much advise against save for the cause of function testing your new load in the magazines they’ll be carried in. So from the powders listed, disregard those that are faster burning than Silhouette. Some shooters just don’t want to have to deal with it whether it be for physical or fiscal reasons where you need to shoot as often as your schedule allows; not necessarily what your wallet allows. I’m mainly concerned with increases of .001” so I use my Mitutoyo dial caliper. From physics we now that energy is defined as the ability to do work. 9mm loads? data [PDF] 5.56 NATO 60-62 gr. This is not about increasing velocity for velocities sake, or just to increase energy. FMJ Perfecta ($9.78 a box at Wally's) and find it accurate, reliable, and clean. Cast bullets for 9mm (like Lead RN) are often .356″ diameter. Later when 3N38 was introduced I was corresponding with another handloader who was interested in my 147 grain supersonic loads and he wanted to try 3N38 because by that time they had reduced their 9mm data to around 33,000 PSI but still managed to launch the 147 grain XTP above 1200 FPS from their 4” test barrel. Today Ruger states that “no 9mm Parabellum ammunition manufactured in accordance with NATO, U.S., SAAMI, or CIP standards is known to be beyond the design limits or known not to function in these pistols.” I point this out because of the paranoia you may have seen about 9mm +P ammunition causing accelerated wear. There simply isn't much load data for the super-heavy 9mm bullets. This article is simply a “how to” to make sure that the handloader is correctly following the necessary steps in developing their own loads. of 1.169”. 480 Ruger. One reason I’ve never updated mine. I can not make the following statement definitively without empirical evidence because I honestly don’t spend a lot of time concerning myself with it. Largely do to some issues I’ve mentioned in the previous paragraph and it grieves me to no end at how many supposed “experts” will offer advice where you’d be far better off consulting your manuals. Stuffing strips of paper into 1 gallon water jugs has been used by some fellas I know. To make things even simpler, you can just shorten your handloads to the next lower .5mm. Pound for pound, very few pistol cartridges have greater case-head strength and some of those that do were derived from the 9 x 19mm, i.e. Only one other load did, a 9mm 147 grain JHP load rated +P+ that the DPS passed on it because of the negative connotations that might be associated with the +P+ label by an uniformed press. It appears now that the FBI is looking back towards the 9 x 19mm. 1250 FPS is safely achievable with 124 grain JHPs with proper loading techniques and I can not stress highly enough the importance of using only a few select powders for the application. Would like to try and work up an accurate pistol load for 25yd bullseye targets. You want it to be longer than the SAAMI max. Then select your bullet weight, powder manufacturer and powder type. Near the end of that chapter the authors state, “For peak chamber pressures between 15,000 and 40,000 PSI, Figure 3-8 suggests that there is an approximately linear relationship between pressure and case expansion.” In case you don’t have this article, Figure 3-8 is a graph showing the amount of case expansion by thousandths of an inch correlating to pressures from 15,000 to 60,000 CUP. Momentum = M x V where the result is expressed in lb-seconds. This does not mean your gun will "blow up" if you exceed these specifications by 1 PSI. Remember, these are specific cases and I’m only going to recommend Accurate #7 here because it has few peers when it comes to loading the 147 grain JHPs. Possible OACL” @ 1.175”. The 9mm is not quite as good as some of its fans think, but it is a better cartridge than most of its detractors would have you believe. Western Powders provides +P data for 9mm Luger,.38 Special and.45 Automatic. And just as I mentioned pressure increasing with shorter OACLs, it works the same in reverse. Spring weight alone does not equal the playing field as was learned in the early days of the .40 S&W when some manufacturers simply put a .40 caliber barrel in their existing 9mm and increased spring weight accordingly. This is the point where the case-MOUTH has come into contact with the shoulder inside the chamber where the throat/leade is in the barrel, and where the rifling/lands begin. His book entitled Quantitative Ammunition Selection can be found at retail outlets such as Barnes & Noble or at Amazon. I’d like to get somwhere in the 1120-1140fps range. I’d like someone to be able to explain to me how a slightly higher pressure, or the original pressure for me, is going to wear out a quality made pistol prematurely. I have had my best accuracy results with these two powders and the 124 grain truncated cone bullets . 9mm caliber (355, 366 dia) 380 Automatic 90 380 Automatic 95 9mm Luger 115 9mm Luger 124 9mm Luger 125 9mm Luger 147 9mm Largo 9mm-Bergmann-Bayard 115 9mm Largo 9mm-Bergmann-Bayard 124 357 SIG 125 357 SIG 147. And there will be things relevant to other autoloading cartridges as well. This is one of those cases where the cart came before the horse because there was no PSI value to raise by 10%. Once you’ve confirmed what OACL you need to use for your bullet and carry pistol, work up to the Max. While I’m on this subject, let me touch on poly-coated bullets for a moment. I love to save a buck wherever I can but it is not what attracted me to handloading. As I close here, let me recommend that you read the companion article as the editor and I decided things like case-neck tension and taper crimp are worthy of their own article rather than add them to one that has already become quite long. 7 would be suitable . Always cross-reference load data with manufacturer’s published data. Lyman’s 9 x 19mm data uses the CUP system for both Start and Maximum charges as is the case for much of their handgun data. (Cowboy Action) 357 Magnum (Cowboy Action) 38 Special (Cowboy Action) 38-40 Win. And, I mean a lot. Fackler and the FBI’s next attempt to find the best service cartridge was the 10mm “Lite.” A 180 grain .40 bullet reduced in velocity from previous loads to around 980 FPS. You’ll find that same load in the Lyman 49th edition or the Pistol and Revolver III except that they loaded longer at 1.115” and used a CCI-500 primer to get a velocity of 1014 FPS. No pistol caliber in my experience is easier to gauge than the 9 x 19mm. Loads for 9 MM Luger: (Note: These are near maximum loads, you should use 10% less to start.) Min Charge Max Charge Optimal Charge Bullet Make Bullet Type Primer Notes; Accurate - Nitro 100 NF: 115 gr. The 147 grain XTP expands to what looks like maybe its maximum potential. Cloudflare Ray ID: 622ed2feaee42313 With your caliper, say you measure the “Max. We are not greatly affected in this country by the CIP system which is tested differently than SAAMI PSI. Again, sectional density comes into play here. I sometimes load 185 and 200 gr. Some will tell you that the piezoelectric transducer system (PSI) is superior to the copper crusher (CUP) method as far as consistency of the peak pressure measurements. Part of the decision on how long your handloads can be is a function of the OACL variations from your press and seating die. The Schwartz method is without a doubt more exacting than my method where he places a chronograph just before a series of water baggies. I thought I could prevent this with higher velocity and did using Silhouette at around 1222 FPS. The round originally struck him in the upper arm/shoulder and with its soft aluminum gilding metal in the jacket, it gave impressive expansion, but it was that rapid expansion that prevented it from penetrating deep enough to stop the perpetrator. A low powered 9mm load I use for action shooting requires the use of a lighter weight mainspring and recoil spring for proper functioning in my gun.....so I use an 18lb. Using power factor as a means to look at slide velocity in recoil, it doesn’t take long to figure out that the same pistols made for .40 S&W and .357 SIG, where other than bore diameter, the greatest difference is slide mass. Unfortunately Hodgdon (including Winchester and IMR) doesn't publish any 9mm +P data online anymore, but if you … I shoot and love both but I don’t use any subsonic defense load in 9mm. I got the load back in '89 from a "Taffin Tests" article in the Handloader magazine. Knowing that the 147 grain supersonic load would yield higher slide velocity than say my 124 grain loads. 40 S&W. As you increase OACL with the 9 x 19mm, keep in mind that the brass above the web is thinning as you get closer to the case-mouth, so case capacity increases to a slightly greater degree. Don’t worry, we’ll get into that as well. Shop Nosler Products. Recovered diameter is ¾” or better while the possibility of over-penetration is significantly reduced. In Lyman’s .40 S&W data you’ll notice 2 things. A recent example would be a .45 ACP load I’ve been developing with the Hornady 230 grain XTP over Ramshot Silhouette. With 230 gr. I looked in my Lee 2nd Edition reloading manual and see that for Bullseye powder it gives the starting load of 4.7 gr, and the max load of 4.9 gr. 9 x 19mm or .45 ACP. That is a top end 9mm load and ok but I suggest working up to it in your pistol. Western Powders provides +P data for 9mm Luger,.38 Special and.45 Automatic. IMO, somewhere in the middle. Power factor is about 190 where we see around a 13% gain over the 147 gr. Also, examine the expanded core; you don’t want to automatically assume that a bullet needs higher velocity, but when the expanded core still has a prominent dimple in its center, it can be made to perform better with additional velocity. With the muzzle of the barrel pointed down for all following procedures, drop the “dummy” into the barrel chamber. You gently push on the case-rim until it stops, then you remove it from the chamber. When it comes to the ballistic “authorities” remember to listen to all sides of the story and never just one. None of the techniques I will offer are particularly difficult. The case-rim will extend above the barrel hood, which most barrels have, which is at the top of the chamber where barrel length is measured from. .347”). I also know where they could find a very good ballistician without much effort! 147 Grain. Do not try to seat and crimp in one operation. to 147 gr. spec. I have 800X, Longshot, Power Pistol and Blue Dot and AA#7 powders in my reloading area. There were those like SIG/Sauer that spent a bit more time in development of their .40 S&W pistols and learned that increased slide mass was also required. This field is for validation purposes and should be left unchanged. The principles are similar but you can allow for more bullet “jump” without an appreciable degradation in accuracy. To maximize performance, the ballistics experts at Hodgdon Powder Co., Inc. have developed a comprehensive Reloading Guide to provide handloaders with current data for Accurate Powders. Well, not with the pistols designed to handle it! This is one of those “crossovers” I mentioned between loading for rifle and pistol. In my way of thinking, everything could be made much easier if everyone used one common standard. I have a tack-driving 9mm load that I am glad to share. I don’t mean to bemoan the practices of my host, but not so long ago Western Powders provided 9mm +P data for every powder they sell that has application in handgun handloads including Nitro 100 and Competition. This is not some exercise to get to 38,500 PSI; its about getting as much velocity as possible with acceptable pressure. The standard-pressure 9mm loads with 90-grain bullets produced around 1,300 fps from a 4.0-inch barrel. Use with most hulls, primers and wads. I’m not an engineer for an ammunition manufacturer but I would certainly hope that those who are know the dynamics well enough to select a proper powder for their defense loads. They, like some handloaders will tell you is that +P ammunition is approximately 10% over standard pressure and how the +P limit of 38,500 PSI was reached. What many do not understand is that OACL recommendations given by the data provider are strictly starting points where you’ll often see it stated that the load should not be shorter. Objective is to determine how accurate a load can be developed. They had also started another practice; that of using a CIP minimum dimension barrels for testing. If the folks in management read this I hope they’ll consider some of my points. But, when safe pressure allows you to increase the powder charge for higher velocity, things change for the better. The SR40 weighs in at 27.25 oz. For those who may not know, Accurate #7 was originally designed as a propellant for heavier 9mm bullets to be fired from submachine guns. It should be done for every weight/style bullet for the pistol it will be fired from! By comparison, loads that are becoming too common these days, IMO, are the subsonic 147 grain JHP loads. 9mm caliber (355, 366 dia) 380 Automatic 90 380 Automatic 95 9mm Luger 115 9mm Luger 124 9mm Luger 125 9mm Luger 147 9mm Largo 9mm-Bergmann-Bayard 115 9mm Largo 9mm-Bergmann-Bayard 124 357 SIG 125 357 SIG 147. This is why I don’t use 115 grain JHPs except for one possible situation where I might if necessary. Secondly, it has the longest shank/bearing surface of any 124/125 gr. Lets take a look at some popular powders in a defense load... 9 MM Major (Open Class) Here is a whole bunch of "slower burning" powders loaded to 165+ Power Factor using 124 Grain Bullets While we’re on this subject, let me state that these authors conclude that: “The key advantage of the piezoelectric transducer is the ability to generate the complete pressure-versus-time history of the internal ballistic process, whereas the copper crusher gage is capable of measuring on the peak magnitude of the pressure pulse.”. Now cleaner burning! This is defined somewhat similarly to the case of adequate bullets for big game by Sectional Density which we will also cover. I believe that recoil plays a major role in all of this. The real questions that I would suggest that you ask yourself here is: 1. The Lyman manual lists pressure for their 147 grain TMJ load at 29,000 CUP. The FBI then began using subsonic 147 grain JHP loads. There is another that I’m familiar with from hydraulics, but BARS is typically used only by Europeans as well as measurements in Mega-Paschals. Do the test for OACL/chamber length for your bullet. The correct location for measuring expansion of the case-head on the 9mm’s case is .200” above the rim. In the response I was told that it appeared that some of my statements contradicted each other so I want to cover this in regard to the statement I made earlier about pistols with short chambers. There are, however, those who believe that they can do better. Obviously your handloads have to be short enough to have some travel clearance in the magazine. Don’t be confused when the +P designation is used as a marketing ploy. So when your internet gun guru states that kinetic energy is insignificant because of “new tech magic bullets,” ask them what “new tech” JHP performance parameters are most controlled by. A little later in the article will discuss a 9mm load I’ve developed in the past and revisited recently with a different, and old favorite powder, a 9mm 147 gr. What I do is to mark as fine of a line as possible at that location and then make a measurement before and after firing the round. +P or higher-pressure loadings may reach 1300 fps. Possible OACL it turned out to be 1.127”. What are some of your load data and powder recommendations that you use to duplicate +P or +P+ loads in 115gr. That’s a power factor of 165.4 which is technically 9mm Major in power factor while I do not believe its pressure would be above 33,000 CUP/35,000 PSI. If we increase velocity and energy at the muzzle we also increase impact momentum, lessening the effect of potential clogging. And even for the newest wonder-bullet, their performance parameters are based on necessary energy levels. I use 7.0 gr Herco under a 115 gr Gold Dot for a +P load in my CZ75. Its pressure rating was established by CIP and it is set at 36,500 PSI. One of the most important considerations in making high velocity 9 x 19mm handloads is Overall Cartridge Length, whatever abbreviation you use. There is one measurement we’ll be making where a micrometer can be used, where with the greater number of graduations for those mics that are accurate to and read to 1/10,000”, that’s one Ten-Thousandth, you can read changes to a more finite scale although not a necessity. Not to beat a dying horse but it’s one of the reasons we handload: so that we can shoot more frequently. We’ll explore this later as well. Regarding a subsonic 9mm 147 gr. No big deal except that the 9 x 19mm has a tapered case. Accurate #5 is a fine handgun powder, but I would not use it either. We’ll be discussing all 3 as we progress. Anyone loading the 9mm for target accuracy? At that point, rather than increase the powder charge further and for the benefit of readers who might not be able to load as long as 29.5mm/1.161”, I shortened the OACL to 29mm/1.142” to get the additional velocity.
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