The Rossi RM66 .357 Magnum 6″ 6-Round Revolver is a medium-frame stainless steel wheelgun that bridges the gap between an affordable range companion and a capable field sidearm. Chambered for .357 Magnum and .38 Special, it packs a 6-inch barrel and a 6-shot cylinder into a package that keeps recoil manageable without breaking the bank.
| Specification | Details |
|---|---|
| Manufacturer | Rossi (by Taurus International) |
| Model | RM66 |
| Material | Stainless steel frame and barrel |
| Compatibility | .357 Magnum / .38 Special +P |
| Finish | Satin stainless (per manufacturer specs) |
| Weight | Approx. 36 oz (unloaded) |
| Condition | New |
Key Features
- 6-inch barrel — WHY IT MATTERS: That extra length boosts muzzle velocity by roughly 100 fps over a 4-inch barrel, giving .357 loads more thump on target and a longer sight radius for precision shooting.
- Wrap-around rubber grip — WHY IT MATTERS: Tames the snap of full-power .357 Magnum loads without adding bulk, so you can run a box of 158-grain rounds without your hand going numb.
- Double/Single action trigger — WHY IT MATTERS: You get a smooth, heavy DA pull for defensive drills and a crisp SA break for slow-fire accuracy at the range—two triggers in one revolver.
- Hammer block safety — WHY IT MATTERS: Prevents the hammer from contacting the primer unless the trigger is pulled, so you can carry six rounds loaded without worrying about an accidental discharge from a drop.
- Adjustable rear sight — WHY IT MATTERS: Lets you dial in windage and elevation for different bullet weights and distances, keeping your groups tight whether you’re shooting .38 wadcutters or .357 hunting loads.
Who It’s For
This revolver is built for the shooter who wants a stainless steel .357 without the premium price tag. It fits the budget-conscious range enthusiast, the hunter who needs a backup sidearm for field use, and the EDC carrier looking for a reliable wheelgun for hiking or truck duty. If you’re new to revolvers and want a platform that handles both light .38 target loads and full-house .357 magnums, the RM66 is a solid starting point.
Pros and Cons
| Pros | Cons |
|---|---|
| Stainless steel construction resists rust in humid conditions | Trigger out of the box can feel a bit heavy—expect a 10–12 lb DA pull |
| Accepts .38 Special for cheap practice | Six-shot cylinder limits capacity compared to modern semi-autos |
| Adjustable rear sight for precise zeroing | Grip texture is rubber but lacks aggressive checkering for wet hands |
Comparison: Rossi RM66 vs. Ruger GP100 vs. Smith & Wesson 686
| Feature | Rossi RM66 | Ruger GP100 | Smith & Wesson 686 |
|---|---|---|---|
| Price | $478 | $800+ | $900+ |
| Barrel length | 6 inches | 4.2 / 6 inches | 4 / 6 inches |
| Capacity | 6 rounds | 6 rounds | 6 or 7 rounds |
| Frame material | Stainless steel | Stainless steel | Stainless steel |
| Fit and finish | Good for the price | Excellent | Excellent |
| Warranty | Limited lifetime (Taurus) | Lifetime | Lifetime |
FAQ
Does the Rossi RM66 come with a transfer bar safety?
No, the RM66 uses a hammer block safety instead of a transfer bar. The hammer block physically blocks the hammer from contacting the firing pin unless the trigger is pulled fully. It’s a proven design for drop safety.
Can I shoot .38 Special +P ammo in the Rossi RM66?
Yes, the RM66 is rated for .38 Special +P. The stainless steel frame handles the higher pressure without issue. Just clean the cylinder after shooting +P loads to prevent carbon buildup.
What is the difference between the Rossi RM66 and the Taurus 66?
The Rossi RM66 is essentially a rebranded version of the older Taurus 66, but with a satin stainless finish and a slightly different grip. Both are made in the same factory in Brazil. The RM66 typically sells for a lower price point.
Is the Rossi RM66 good for concealed carry?
It’s bulky for IWB carry due to the 6-inch barrel, but it works well for OWB carry under a jacket or in a chest holster when hiking. If you want a CCW revolver, look at the 3-inch or 4-inch barrel versions.
Does the RM66 have a full underlug barrel?
Yes, the barrel has a full underlug that runs the length of the ejector rod, adding weight to the front to reduce muzzle rise during rapid fire.
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Browse more options: Revolvers | .357 Magnum Revolvers
Last updated: April 2026
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