Gun Of The Week: Rossi USA RM66

by
posted on November 17, 2023

Welcome to another American Rifleman Gun Of The Week video, and here, we’re looking at the classically styled RM66 from Rossi USA. This is the full-size hunting and target model offered in Rossi’s revolver lineup, which also includes a 4”-barreled gun and a 3”-barreled carry model. Watch the video above to see the RM66 in use on the range.

GUN OF THE WEEK AMERICAN RIFLEMAN text on image overlay box over gun revolver rossi usa rm66 stainless steel gun right side view black grips gray background

The firm of Amadeo Rossi, based in Brazil, has been in the gun business since the late 19th century, but it wasn’t until the 1960s that U.S. shooters began seeing Rossi-made guns stateside. Though the company made and still makes long guns, revolvers were always a mainstay in the Rossi lineup, and that was true up until 2018, when Rossi discontinued its revolver line to focus on long guns. Now, though, these handguns are back in a big way.

Left-side view full length on white of Rossi USA RM66 double-action stainless steel revolver chambered for .357 Mag. gun wheelgun black grips

Outfitted with a 6”, full-lug barrel, the RM66 is the largest of the revolvers currently in the Rossi lineup. Chambered in .357 Magnum, the guns feature a six-round cylinder and are made entirely of stainless steel. In terms of controls, the Rossi mimics the cylinder direction of Smith & Wesson revolvers, with the cylinder advancing counter-clockwise with each pull of the trigger. Unlocking the cylinder from the frame is done like a Smith & Wesson, too, by simply pushing forward on the textured release latch located on the left side of the frame. A generous-length, shrouded ejector rod allows shooters to easily kick out spent cases. The Rossi design includes locking points at the front and rear of the cylinder.

Rossi USA American Rifleman Text on image tiles 9 images arrangement gun details man shooting outdoors

As befitting a hunting or target revolver, the RM66 is topped with a windage- and elevation-adjustable rear sight, and that’s paired with an all-black ramped front sight with a serrated face to reduce glare. A white, squared off outline on the rear face of the rear sight provides a contrast to the all-black front. The rear sight is attached to the top strap via two screws, while the ramped front sight base is secured with a single screw. The front sight itself is pinned, allowing owners to remove and replace it, if desired. These guns are built with a single-action, double-action operating system, providing a wide, generously textured hammer spur that’s easily reached for single-action operation. On our test revolver, the double-action trigger pull measured in at just under 11 lbs., and thumbing the hammer back into single-action reduced the pull weight to just under 4 lbs.

Rossi USA RM66 quarting view stainless steel revolver on white

At the bottom end of the gun, the RM66 has a squared-off grip profile, completed by a generously sized, wraparound rubber grip. The grip features finger grooves on its front face and has a relieved area on its left side to provide clearance for spent cases. A textured surface provides additional purchase, ensuring control when firing full-house magnum loads. Even with hot .357 Magnum rounds, the Rossi RM66 is a pretty comfortable gun to shoot. That’s, no doubt, due in part to its 34.4-oz. unloaded weight. That, plus the full-length underlug, means there’s plenty of weight working against recoil and muzzle rise, making this one of the easiest-shooting magnums we’ve had on the range in a while.

Rossi USA RM66 Specifications
Importer: Rossi USA
Action Type: double-action, centerfire revolver
Chambering: .357 Mag.
Barrel: 6" stainless steel
Frame: stainless steel
Sights: fully adjustable square-notch rear, post front
Trigger: double-action, 10-lb., 14-oz. pull; single-action, 3-lbs., 11-oz. pull
Capacity: six-round swing-out cylinder
Overall Length: 10.88"
Height: 5.38"
Width: 1.46"
Weight: 34.4 ozs.
MSRP: $621

Latest

Long Wolf Timberwolf 19X Web
Long Wolf Timberwolf 19X Web

Review: Lone Wolf Arms Timberwolf 19X

In its Timberwolf 19X, Lone Wolf Arms focused on incremental updates and tweaks to the seminal Glock design, resulting in a versatile "crossover" handgun design capable of fulfilling a variety of roles.

May NICS Numbers Show Possible Improvement In Gun Sales

Despite the 1.6 percent year-over-year decline in firearm sales for the month of May, the 31-day period marks the 70th month in a row with more than 1 million gun sales.

2025 Shotgun Of The Year: SDS Arms MAC 1014

For each of the past 23 years, the editors of American Rifleman have convened to select our top picks for the past year’s best and most innovative products. Here are the most recent winners.

Rifleman Review: Smith & Wesson Model 1854

Smith & Wesson entered an entirely new market segment in 2024 with its Model 1854, and the lever-action has a few notable features that allow it to stand out in what's becoming a crowded market of modernized lever guns.

New For 2025: Mossberg 990 Aftershock

Mossberg is one of the pioneers of the "Shockwave" style of non-NFA, shotshell-firing firearms, and the company's latest design, the 990 Aftershock, is semi-automatic.

The Battle of Bunker Hill: 250 Years Later

The June 17, 1775, Battle of Bunker Hill marked one of the most pivotal moments in the early years in the American Revolution, as thousands of militiamen stood against determined assaults by British infantry outside Boston.

Interests



Get the best of American Rifleman delivered to your inbox.