What You Actually Get With the 49th Edition
The Lyman Reloading Manual 49th Edition is a data book. It does not teach you how to load, and it does not try to. What it contains are hundreds of load tables covering different bullet weights, powder types, and cartridge combinations. The tables give you starting charges, maximum charges, and velocity data collected from test rifles. That is all. Nothing more, nothing less. I have used reloading manuals since 1998, and I still pull the 49th edition off the shelf when I need a quick reference. Not because it is the most advanced manual available, but because it covers a wide range of wildcat cartridges that other books skip entirely. Lyman has always had access to custom chamber reamers and experimental rifle builds. That shows up in the data. A lot of other manuals stick to SAAMI-standard calibers. This one goes further. Here is something beginners miss. The 49th edition does not use CUP for pressure measurement. It uses psi. That matters when you are cross-referencing data between manuals. Some newer books switched to piezo-electric transducers. The 49th edition still reflects older pressure testing methods. You can compare the numbers, but you cannot treat them as directly equivalent without accounting for the testing difference.
How to Use the Data Safely
Start every new load at the lowest charge listed. Drop down 10 percent from there if you are working with a handgun round that sees high cyclic rates of fire. Handgun pressures spike differently than rifle pressures. A rifle might tolerate a sharper peak, but a handgun cycling at 600 rounds per minute is another story. I learned that the hard way with a .44 Magnum revolver that keyed itself shut after three magazines of max-load +44 Special work. Not Lyman's fault. My fault for reading the wrong column. The manual does not tell you to use a chronograph. It assumes you already own one. That assumption is fair. You cannot verify velocities without measuring them. Start low, work up in 0.2-grain increments for rifle powders and 0.1-grain increments for handgun powders. Watch for signs of overpressure: stiff extraction, flattened primers, ring around the primer pocket, ejector marks on the case head. Any one of those means stop and drop the charge. There is a practical reason to work in small increments. Modern powders like Alliant Reloder 15 and Hodgdon H110 have very steep pressure curves. A half-grain change can shift pressure by 10,000 psi or more in certain cartridges. The old advice to work up in one-grain steps came from an era when ball powders dominated. That era ended decades ago. One-grain steps on modern extruded powders is basically guessing.
What the 49th Edition Does Not Cover
The manual does not include data for the 6.5 PRC, 6mm Dasher, or most of the new PRS-style cartridges. Those came out after this edition was finalized. If you are shooting competition precision rifle, you will need a supplementary source. Lee Precision Reloaders Manual 10 or Hornady Lock-N-Load 5th Edition both cover the modern offerings adequately. Another gap: no seating depth recommendations. The manual gives you bullet overall length ranges, but it does not tell you how far to jump the bullet to the lands for your specific barrel. That is something you figure out yourself using a comparator tool and a test barrel. I spent about two hours on a custom .308 build figuring out that a .020-inch jump to the lands produced the tightest groups. The manual had the powder data. It did not have the seating depth answer. Here is an edge case that tripped me up recently. I was loading 6.5 Grendel with 120-grain Sierra HPBTs and VihtaVuori N140. The 49th edition listed a max charge of 24.5 grains. I started at 22.0 and worked up. At 24.0, I noticed the brass was getting hard to resize after the first firing. Not stuck, but noticeably stiffer. I dropped back to 23.5 and the issue went away. The manual data was correct for standard pressure, but that particular powder-bullet combination was running hot in my short-action rifle. Different barreled guns can behave differently even with identical components.
Get the Full Details
Physical Copy vs Digital Access
The 49th edition is still in print. Lyman sells it directly, and Brownells carries it. You can find used copies on eBay for $15 to $25 in decent condition. The digital version exists as a PDF through various reloading forums, but those files are often copyrighted and distributed without authorization. I do not recommend sourcing it from unofficial channels for a few reasons. First, the quality varies. Some scans have blurred tables that make 0.1-grain distinctions unreadable. Second, there is no guarantee the data matches the official edition. Publishers occasionally issue errata, and unofficial scans may skip those updates. If you buy the physical book, expect it to lay flat. It does not. The binding is perfect-bound, which means it cracks at the spine after repeated use. I tape mine at the first sign of stress. Not aesthetic, but functional. A cracked manual loses pages when you are trying to look up data mid-session.
Supplementary Sources Worth Having
Beyond the 49th edition, keep a copy of the NRA Firearm Handbook for safety procedures, and consider the Shooter's Bible Guide to Reloading for troubleshooting. The 49th edition is primarily a data reference. It assumes you already know the basics of safe reloading practice. If you do not, start with a dedicated instruction book before touching the data tables. I also keep a spreadsheet where I log my own loads. The manual data is useful as a starting point, but real-world performance varies based on your specific gun, primer lot, powder batch, and ambient temperature. I track charge weight, velocity, and group size for every load I publish. Over time, your personal data becomes more accurate than any printed manual for your specific setup. The 49th edition gets you close. Your own log gets you precise.
