Description
The Barnes 31112 TSX is a .358 diameter, 180-grain all-copper component bullet made specifically with the .35 Remington in mind. Barnes engineered the oversized hollow-point nose to open up at the lower velocities the .35 Rem runs, which is a big deal since older copper designs often needed more speed to expand reliably. The flat-nose, flat-base profile is exactly what you want for lever guns like the Marlin 336 and other tube-fed rifles, where a pointed tip against a primer is a no-go.
Why the TSX Works on .35 Rem Game
The Triple-Shock X is a monolithic copper bullet, meaning there's no lead core and no jacket to separate. On impact the hollow cavity expands into four sharp copper petals that cut a wide wound channel, and because it's one solid piece it hangs onto nearly all of its original weight, typically in the 99 to 100 percent range. That weight retention is what drives the deep, straight-line penetration Barnes bullets are known for. For a woods cartridge thrown at deer, black bear, and hogs inside moderate range, that's a combination that puts animals down.
Loading the 31112 TSX FN FB
This is a component bullet for handloaders, not a loaded cartridge, so you'll be seating these in your own .35 Remington brass. It carries a .358 inch diameter, a G1 ballistic coefficient of .193, and a sectional density of .201. As with most Barnes copper bullets, these like a little jump to the lands, and many reloaders find their best groups seating somewhere in the 0.030 to 0.070 inch off-the-lands window. The pressure-relief grooves along the shank help cut down on copper fouling and keep pressures manageable, so you can work up a load without the barrel loading up fast.
Barnes packages these 50 to a box, giving you plenty to work up a load and still have hunting ammo left over. If you've been feeding your .35 Rem the same old soft points for years and want a lead-free option that penetrates hard, these are worth a spot on the bench.
Key Specifications
- Manufacturer: Barnes
- Manufacturer Part Number: 31112
- UPC: 716876354801
- Caliber: .35 Remington
- Bullet Diameter: .358 inch
- Bullet Weight: 180 grain
- Bullet Style: TSX Flat Nose, Flat Base (FN FB)
- Construction: All-copper, lead-free
- Ballistic Coefficient (G1): 0.193
- Sectional Density: 0.201
- Quantity: 50 per box
- Intended Use: Big game hunting / rifle reloading
What’s Included
- 50 Barnes TSX .35 Remington 180-grain FN FB all-copper component bullets
Frequently Asked Questions
Are these loaded cartridges or just the bullets?
These are component bullets only, not loaded ammunition. They're meant for handloaders to seat in their own .35 Remington brass. You'll supply your own cases, powder, and primers.
Will the Barnes TSX .35 Rem feed in a tubular magazine like a Marlin 336?
Yes. The flat-nose, flat-base profile is designed to feed safely in tube-fed lever guns, which is exactly where most .35 Remington rifles live. The flat tip keeps it safe against the primer of the round ahead of it in the magazine.
Does the 31112 TSX expand well at .35 Remington velocities?
Barnes built this particular bullet with an oversized hollow-point cavity specifically so it opens up at the lower speeds the .35 Rem produces. The TSX expands into four copper petals and holds onto nearly all its weight, which gives you deep penetration with reliable expansion inside typical woods ranges.
How should I seat these Barnes copper bullets for best accuracy?
Copper TSX bullets generally shoot best with a bit of jump to the rifling. Many reloaders land on their tightest groups seating somewhere between 0.030 and 0.070 inches off the lands, so it's worth experimenting in that range. Start low and work your load up as usual.




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