If you've recently picked up a lever gun in this caliber, 360 buckhammer reloading is probably the next logical step to save some cash and tune your loads for your specific rifle. It wasn't that long ago that straight-wall cartridges were a niche thing, mostly for guys in "slug-only" states who wanted a bit more reach. But now, with the 360 Buckhammer hitting the scene, things have gotten interesting. It's essentially a .30-30 Winchester case blown out to hold a .358-caliber bullet, and for those of us who love a good project at the reloading bench, it offers a ton of potential.
One of the biggest reasons to get into 360 buckhammer reloading right now is simply the cost and availability of factory ammo. While Remington and Federal are doing a decent job keeping shelves stocked, factory boxes aren't exactly cheap. Plus, if you're a tinkerer, you probably want to see just how much accuracy you can squeeze out of that Henry or Winchester. Since it uses standard .358 diameter bullets—the same stuff used in the .35 Remington and .35 Whelen—you actually have a decent spread of projectiles to choose from right out of the gate.
Understanding the Brass and Case Prep
When you sit down to start your first batch, the first thing you'll notice is the brass. Since this is a rimmed cartridge, it headspaces on the rim, which makes life a lot easier than dealing with something like the .350 Legend that headspaces on the case mouth. For 360 buckhammer reloading, you're mostly going to be looking at Remington brand brass, though Starline has been known to jump on these things pretty quickly once a caliber gains traction.
Case prep is pretty straightforward, but there's a catch. Because it's a straight-wall case, you aren't dealing with shoulder bump or complex resizing issues, but you do need to keep an eye on case length. These cases can stretch after a few firings, and since you'll likely be putting a heavy roll crimp on these to keep bullets from jumping under recoil in a tubular magazine, consistent case length is king. If your cases are all different lengths, your crimps will be all over the place, and your accuracy will fly right out the window.
I always suggest a good chamfer and deburr after trimming. You want those flat-nose bullets to seat smoothly without shaving any jacket material. It's a small step, but it makes a massive difference in how consistent your neck tension feels when you're pulling the handle on the press.
Picking the Right Bullets
This is where 360 buckhammer reloading gets fun. You aren't stuck with just one or two options. Since the 360 BHMR is designed to run at higher pressures than the old .35 Remington, you can use some of the tougher .358 bullets designed for hunting. The 180-grain and 200-grain options seem to be the "sweet spot" for this cartridge.
The Hornady InterLock and the Speer Hot-Cor are classic choices that have been dropping deer for decades in other .35-caliber rounds. Just keep in mind that since most 360 Buckhammers are lever-action rifles with tubular magazines, you must use round-nose or flat-nose bullets. Loading pointed "spitzer" bullets is a recipe for a bad day if a primer hits a tip under recoil in the magazine tube. Stick to the stuff designed for lever guns, and you'll be just fine.
Some guys are even experimenting with heavy hard-cast lead bullets. If you're into "thumpers" for woods hunting or pig protection, a 220-grain cast bullet with a wide meplat can be a hammer. You just have to watch your velocities so you don't lead up the barrel, but that's part of the hobby, isn't it?
Powder Choices that Work
When it comes to the "go-juice," 360 buckhammer reloading likes powders that are on the faster side of the rifle spectrum or the slower side of the magnum pistol spectrum. Think along the lines of Accurate 1680, Hodgdon CFE BLK, and Lil'Gun. These powders seem to fill the case well and provide the pressure needed to get those heavy bullets moving at a respectable clip.
CFE BLK has been a standout for many because it's designed to reduce copper fouling, which is nice when you're pushing jacketed bullets through a relatively short barrel. Accurate 1680 is another staple that provides great metering through a powder measure. If you've ever reloaded for the 7.62x39 or the .300 Blackout, you probably already have some of these sitting on your shelf.
It's always smart to start low and work your way up. This isn't a cartridge where you want to go "bubba-hot" right off the bat. The 360 Buckhammer operates at a higher pressure (around 50,000 psi) than the .30-30, so pay attention to your primers for signs of flattening or cratering as you approach the maximum loads listed in the manuals.
The Importance of the Crimp
I can't stress this enough: for 360 buckhammer reloading, the crimp is not optional. In a lever-action rifle, the rounds are stacked end-to-end in the magazine. Every time you fire a shot, the recoil pushes the magazine spring against the remaining rounds. If you don't have a solid roll crimp, the bullet can get pushed back into the case (telescoping). This creates a dangerous spike in pressure when that round finally makes it into the chamber.
A Lee Factory Crimp Die is a lifesaver here. It's very forgiving of slight variations in case length and gives you that nice, secure hold on the bullet's cannelure. You want it firm, but you don't need to crush the brass. Just enough to ensure that the bullet isn't going anywhere until the firing pin drops.
Real-World Performance on the Range
Once you've got your loads put together, taking them to the range is the ultimate test. Most people find that 360 buckhammer reloading results in a very soft-shooting but hard-hitting setup. It doesn't have the sharp "snap" of a .450 Bushmaster, and it feels a bit more substantial than a .350 Legend.
Accuracy-wise, a well-tuned handload can easily produce 1.5-inch groups at 100 yards, which is more than enough for any deer woods in the country. You're looking at velocities in the 2,200 to 2,400 feet per second range depending on the bullet weight and barrel length. That's a lot of energy in a compact package.
One thing to watch for is how your specific rifle cycles your handloads. Lever guns can be picky about overall length (COL). If you seat the bullet too long, it won't make the turn from the magazine elevator into the chamber. If you seat it too short, it might cause a double-feed or a jam. Always check your manual for the recommended COL and maybe even cycle a few "dummy" rounds (no powder or primer) through the action to make sure everything is smooth before you mass-produce a hundred rounds.
Final Thoughts for the Bench
At the end of the day, 360 buckhammer reloading is a great way to get more involved with your gear. It turns a standard "off-the-shelf" hunting rifle into a specialized tool that you've personally tuned. Whether you're trying to save money or you're just looking for the most accurate load possible for that big buck this November, the process is rewarding.
The 360 Buckhammer might be the "new kid on the block," but it's built on old-school principles that reloaders have loved for a century. It's a rimmed, straight-wall, .35-caliber thumper that just plain works. So, grab some brass, find some 180-grainers, and get to work. You might just find that your handloads outperform the factory stuff by a long shot, and there's no better feeling than that when you're out in the field.