Which Came First? The Side-by-Side or Over/Under Shotgun?

by
posted on August 5, 2013
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
bs_2015_fs.jpg (11)

Recently I overheard a co-worker giving his “brief history of firearms” to the new girl. He told her that side-by-side shotguns are historically older than over/under shotguns. This claim might seem irrelevant, but nonetheless it started an inter-NRA office debate. I believe many Americans view side-by-sides as “granddaddy’s guns,” or the coach guns seen in western films and therefore think of them as old and nostalgic. Conversely, we tend to imagine over/unders as the shiny new Berettas and Brownings at the skeet range, and therefore think of them as modern. But shotgun design did not begin in America, and, in fact, I’ve seen some dinosaur-aged over/unders at the National Firearms Museum. So I investigated.

The Myth
The side-by-side shotgun design is older than the over/under design.

The Expert Opinion
I asked American Hunter contributor, renowned firearm historian and prolific author Terry Wieland—he's written dozens of books on firearms including Vintage British Shotguns—for his opinion. (Opinion is relevant here, because gunsmiths back in the day were better at turning barrels than documenting them, so we have to rely on the accumulated knowledge from experts who rely on the history that is documented.)

“It depends how you define shotgun,” Wieland said. “If you mean a shotgun in the modern sense (from the pin-fire forward) then it's the side-by-side.  If you go back further, to percussion guns and flintlocks, they did not really differentiate between rifles and shotguns the way we do. But the answer is still the side-by-side. I have always read that the first multi-barrel guns were over/unders, going back to ignition systems even before the flintlock. Rifles and shotguns did not part company until the mid-1850s, and once we get to percussion systems of guns in general, the side-by-side was the first because of the difficulty in devising an ignition system for such a barrel configuration. It was only after hammers (tumblers) and strikers moved inside the frame that it became possible to devise a good over/under, and even then there were difficulties for years with hangfires and misfires. You have to go back to the very earliest ignition systems, where powder was ignited by hand, to find over/unders, and once you get back that far, who's to say?”

What the BullShooters Say
This “myth” is not myth: The side-by-side is the granddaddy of double-barrel shotguns.

What You Might Say
If you have evidence that proves otherwise, bring it on!

Latest

Ledemule Deer Foundation Delivers
Ledemule Deer Foundation Delivers

MDF Invested $48.3 Million for Conservation in 2025

The Mule Deer Foundation (MDF) mobilized a total of $48.3 million for mule deer and black-tailed deer in 2025, its second-best year on record. Across 153 projects in 17 states, MDF helped restore more than 537,000 acres of critical wildlife habitat, benefitted 129 deer herds and eliminated or converted 149 miles of hazardous fence to restore safe movement corridors for wildlife.

Behind the Bullet: .17 Mach 2

Ever heard of the .17 Mach 2? Go behind the scenes on this hot little rimfire round with resident ammo guru Phil Massaro.

Tuo Curates Specialized Turkey Hunting Collection

For the 2026 spring season, Tuo has architected a technical system specifically curated to meet the demands of turkey hunters. While engineered for maximum versatility, the Tuo ecosystem has developed a particular following in regions where the early season isn't defined by green leaves and lilac blooms, but by the high-contrast skeletal timber and grey-scale of the early spring woods.

New for 2026: Savage Model 110 Rimfire

Savage Arms has expanded its Model 110 family of rifles into the rimfire world. Long loved by generations of hunters, the classic Model 110 will now include a number of full size, .22 Long Rifle offerings, making up the new Model 110 RF line.

Snow Goose Science: Hunting Tips from the Pros

Want to drop more snow geese during conservation season? Check out these tips, straight from the pro guides at Central Missouri Wildlife.

New for 2026: Apex Ammunition 28-Gauge SmallTown Hunting TSS Turkey Blend

Apex Ammunition is now offering a 28-gauge load in its SmallTown Hunting Blend line of turkey ammunition.

Interests



Get the best of American Hunter delivered to your inbox.