This extreme variation means a barrel must be measured. For a better experience, please enable JavaScript in your browser before proceeding. I might be wrong but I try to set my OAL the same with my 9mm round nose with all grains at 1.135. Best to chamber check with the barrel clean and out of the gun. Most round nose (RN) 9mm will run better just shy of that, around 1.135". It's your charge that is more then likely the problem. 357 Magnum. My variations get as low as 1.154 and the minimum length for the powder bullet combo is 1.150. OAL is considered the muzzle â minus removable muzzle devices â to the rear of the brace (either collapsed or folded to be in its shortest form). I've read that you get better accuracy from using an OAL closer towards the maximum side, so I wouldn't change your OAL. This seems extremely short. Assuming the reloading data supports my OAL recommendation (which I have never seen one that doesn't). The reloading guide for American Select shows 5.2 Gr. I shoot these minor loads with my Shadow 2 and X5. 357 Remington Maximum. 380 Auto (ACP) 9mm Luger (Parabellum) 357 Sig. The G26 is not as tollerant of low power loads. (not sure tho) i believe 1.169 is the standard Max OAL. Also check out p157 on min oal. I’ve only made about 6 bullets to test for OAL so far. Cause if I set it any higher I could be making bullets don’t fit in magazines. Minimum OAL (inches) Bbl Length Primer Powder Charge Weight (grains) Velocity (fps) Notes 9mm Luger 115 gr FMJ Federal 1.12 4 Fed 100 BE-86 6.1 1,219-9mm Luger 124 gr FMJ federal 1.12 4 Fed 100 BE-86 5.8 1,167- 1.12 I personally think they should state max and minimum and used OAL being it can change the load pressure drastically in such a small shell as the 9mm. Hornady lists 1.075" as OAL. FMJs, and the manuals (yes I use three) say the minimum OAL is 1.142" and the maximum OAL is 1.169". I mostly got concerned when I started digging deeper and seeing everyone's data using much shorter OAL. (MODERN RELOADING Second Edition - Richard Lee) Be Alert: Publisher cannot be responsible for errors in published load data. I did everything by the book. Range report. That is bullet + case. Seems to work very well so far. What is the likeliest reason for the Failure to Chamber? Did my 1st 9mm reloading. FYI, I got a 1087 fps average with the 4.2 grns of TG. I've loaded a Rainier plated 115 grn RN bullet at 1.10 COL. My powder was 4.2 grns of Titegroup. ; All measurements are given in millimeters, followed by the equivalent in inches between parentheses. Just with a visual 1.60 looks pretty good but 1.06 looks way too short. I use 147 gr. Yes your powder charge is a little on the low side, O.K., if they cycle fine. so I lock my die in at 1.1565" and I hold plus or minus 0.0005 Today's SAAMI maximum OAL is the original DWM minimum length. Ok here goes. So I set it to 1.164. It couldn't hurt to drop your OAL a little though. If all your rounds are within a hundredth of an inch or maybe a little more, you're OK. 44 … 41 Rem Mag. Using bullets from Jacketed, XTP, Lead, Copper Plated. I used Sierra 115 gr. Switching it to 1.130 made a significant difference. Groove diameters in 9mm barrels vary from 0.354” to 0.361”. Any longer than 1.150 and it becomes an adventure in reliability, so I backed it off for a little cushion and called 1.145 good. Suite 500, Troy, Michigan 48084 USA. I came to my COL of 1.10 from listed data, maybe the Hodgdon manual, maybe website too. Sometime ago I got a batch of Bayou Coated bullets in 9mm 124gr round nose. 800 OAL 178 gr A-Max Lapua Brass 43. JHP with American Select Powder 4.9 grains. How a cheap can an old, the old fart get?!”. I had been using an OAL of 1.100. Never feed a cat anything that isn't the same color as the carpet. What weapon are you using? I made up a batch of 1.156 OAL to see how these work in both. (not sure tho) i believe 1.169 is the standard Max OAL I personally think they should state max and minimum and used OAL being it can change the load pressure drastically in such a small shell as the 9mm Thanks for the input so far guys. It seems to be very popular in .40 S&W and ⦠of Unique. Max is the 9mm cartridge spec max and in theory a round made to that length should fit and function in all guns. 9mm has a great range of OAL. I've read that you get better accuracy from using an OAL closer towards the maximum side, so I wouldn't change your OAL. JavaScript is disabled. These Sierra bullets in my option look very My open 9 major The ALLIANT RELOADER'S GUIDE says MIN OAL is 1.140.