The Rossi RM66 .357 Magnum 6″ 6rd Stainless Revolver is a medium-frame, double- and single-action revolver built for shooters who want a straightforward, durable defensive tool. Chambered in .357 Magnum, it accepts .38 Special for practice and .357 Magnum for protection. The six-inch barrel provides a longer sight radius for accurate shot placement, while the six-round cylinder gives you enough capacity for most self-defense scenarios.
| Manufacturer | Rossi |
|---|---|
| Model | RM66 |
| Material | Stainless steel (frame, barrel, cylinder) |
| Compatibility | .357 Magnum / .38 Special |
| Finish | Satin stainless |
| Weight | 38.5 oz (per manufacturer specs) |
| Condition | New |
Key Features of the Rossi RM66
- Stainless steel construction — resists rust and corrosion from sweat, rain, or humidity, so your revolver stays reliable even if you carry it daily.
- 6-inch barrel length — gives you a longer sight radius for faster, more precise follow-up shots, plus reduces muzzle flip compared to snub-nose revolvers.
- Double and single action — you can shoot double-action for rapid defensive fire, then switch to single-action for precision shots at the range or in a standoff.
- Six-round capacity — enough to handle most civilian threats without needing a reload, yet keeps the grip slim enough for concealed carry.
- Traditional revolver platform — no safeties to fumble with, no slide to rack, just point and shoot. This mechanical simplicity is a lifesaver under stress.
Who the Rossi RM66 Is For
This revolver is for the shooter who values reliability over flash. It’s ideal for home defense because the long barrel tames recoil and the stainless finish won’t rust if left in a nightstand drawer. It also works for concealed carry if you use a good belt holster — the six-inch barrel prints a bit, but the slim cylinder hides well. New shooters will appreciate the no-nonsense manual of arms, and experienced shooters will respect the mechanical precision of a .357 Magnum revolver.
Pros and Cons
- Pro: Full stainless build — no rust worries, even if you carry it in a sweaty holster.
- Pro: Interchangeable grip options — you can swap to aftermarket rubber or wood grips for a custom fit.
- Con: The six-inch barrel makes it harder to conceal IWB than a 4-inch or snub-nose revolver. If you plan to carry appendix, consider a 3-inch model instead.
How It Stacks Up Against Competitors
| Feature | Rossi RM66 | Smith & Wesson 686 6-inch | Ruger GP100 6-inch |
|---|---|---|---|
| Caliber | .357 Magnum | .357 Magnum | .357 Magnum |
| Capacity | 6 rounds | 7 rounds | 6 rounds |
| Weight (oz) | 38.5 | 41.0 | 42.0 |
| MSRP | $537.20 | $1,179 | $979 |
| Action | DA/SA | DA/SA | DA/SA |
| Grips | Rubber | Rubber | Rubber |
The Rossi RM66 competes directly with the Smith & Wesson 686 and Ruger GP100. The Rossi is lighter than both by a few ounces and costs roughly half the price. You lose one round of capacity compared to the 686, but you save enough money to buy a good holster and a few boxes of ammo. According to Rossi specs, the RM66’s stainless steel is identical in corrosion resistance to the competition. The honest drawback is that the trigger out of the box feels a little heavier and less polished than the S&W’s — but a gunsmith can smooth it up for under $50.
Frequently Asked Questions
What is the barrel length of the Rossi RM66?
The Rossi RM66 has a 6-inch barrel. This gives you a longer sight radius than a snub-nose revolver, which helps with accuracy at the range and in defensive situations.
Can I shoot .38 Special in the Rossi RM66?
Yes. The RM66 is chambered for .357 Magnum but safely fires .38 Special and .38 Special +P ammo. Use .38 Special for training and .357 Magnum for carry or home defense.
Is the Rossi RM66 good for concealed carry?
It’s possible with a good belt holster, but the 6-inch barrel makes it more suited for open carry or home defense. If you want a carry revolver, consider the Rossi RM64 with a 4-inch barrel.
Does the Rossi RM66 have a transfer bar safety?
Yes. The RM66 uses a transfer bar safety system, which means the hammer rests on a safety bar instead of the firing pin. This prevents accidental discharge if the hammer is struck or the revolver is dropped.
Why Buy from Us
- ✅ Nationwide delivery to all 50 states
- ✅ Ships 1–2 business days from order
- ✅ 30-day return policy on unused items
- ✅ Secure checkout with encrypted payment
Browse related gear: All Revolvers | .357 Magnum Ammo | Holsters for 6-inch Revolvers
Last updated: April 2026
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