The Simmons Pro Rimfire 3-9×32 is a $55 rimfire scope with a 50-yard fixed parallax, a .22 Drop Zone reticle and 1-inch Weaver-style rings in the box. For a Ruger 10/22 shooting inside 100 yards it covers what matters, and the parallax setting is the reason to pick it over a cheap centrefire scope.
We went looking for this scope because a reader of our best Ruger 10/22 scopes guide cannot buy entry number seven any more. Tasco has left the rimfire scope business, and the Pro Rimfire is the closest thing to a straight swap at the same money. Nobody has published an independent review of it yet, so what follows is the spec sheet, the manufacturer’s own documentation, and what we know about the scope it replaces.
The 50-Yard Parallax Is the Whole Point
A riflescope is built with its parallax error corrected at one distance. Centrefire scopes are set at 100 or 150 yards, because that is where a .308 does its work. Put one of those on a 10/22 and shoot a squirrel at 35 yards and your reticle floats against the target as your eye moves behind the glass — the crosshair lands where your head was, not where the rifle points.
Rimfire-specific scopes are set at 50 yards instead. That is the honest difference between a $55 rimfire scope and a $55 general-purpose scope, and it is the one spec most buyers skip. The Pro Rimfire is factory-set at 50 yards with no adjustable objective to fiddle with. You cannot change it, and on a .22 you do not want to.
What You Actually Get
- 3-9x magnification, 32mm objective, 1-inch one-piece aluminium tube
- 50-yard rimfire parallax, fixed; second focal plane reticle
- Simmons .22 Drop Zone reticle, with holdover marks rather than a plain crosshair
- 70 MOA of windage and 70 MOA of elevation, capped finger-adjustable turrets
- IPX7 water resistance, fog-proof and shockproof, fully coated glass with Bushnell’s EXO Barrier lens coating
- In the box: 1-inch four-hole Weaver-style aluminium rings, bikini lens covers, cleaning cloth
Bushnell lists it at $79.95. It sells on Amazon for about $55, which is where the value case lives.
Mounting It on a 10/22 Is Where People Get Caught
The rings being included sounds like it settles the mounting question. It does not, quite.
A Ruger 10/22 receiver is grooved for 3/8-inch tip-off rings, and Ruger also makes a base adapter that bolts to the receiver and takes both 3/8-inch dovetail and Weaver-style rings. Which of those you have depends on your rifle and on whether a previous owner changed anything. The Weaver-style rings in the Simmons box bolt onto a Weaver-pattern base; they are not tip-off rings. Look at the top of your receiver before you order, and if you are putting a base on from scratch our notes on scope rings and mounts cover the patterns.
What Changed From the Old .22 MAG
The scope the Pro Rimfire replaces is the Simmons .22 MAG 3-9×32, model 511039, which was the default budget rimfire recommendation for roughly a decade. The format is identical — 3-9×32, 1-inch tube, 50-yard factory parallax, rings included — so the useful question is what moved.
The reticle did. The .22 MAG used a plain Truplex; the Pro Rimfire uses the .22 Drop Zone, which gives you marked holdover instead of guesswork past 50 yards. The glass picked up the EXO Barrier coating and an IPX7 rating, where the old scope was simply listed as waterproof and shockproof. Adjustment range is quoted differently now: 70 MOA each way on the Pro Rimfire, against the .22 MAG’s 1/4-MOA click value with no published total.
For reference, the figures published for the .22 MAG were 12 inches long, 10 ounces, 31.4 feet of field of view at 100 yards and 3.75 inches of eye relief. Simmons does not publish field of view for the Pro Rimfire, which is a gap worth knowing about before you assume the two are interchangeable on a tight scope base.
One Catch With the Drop Zone Reticle
The reticle sits in the second focal plane, which means it stays the same apparent size while the target grows and shrinks as you zoom. The practical consequence: holdover marks only mean what the manufacturer says they mean at one magnification. Dial down to 3x and the same mark covers three times as much of the target as it does at 9x. Simmons does not publish which power the .22 Drop Zone is calibrated at, so treat the marks as rough references until you have shot them at known distances on your own rifle, at the magnification you actually hunt with.
Where We Would Be Careful
Two things. First, neither this scope nor its predecessor is rated for air rifles — the reverse recoil of a spring piston gun is a different load than a .22 LR, and the old .22 MAG was explicitly not airgun rated. If the scope is for a break-barrel pellet rifle, buy an airgun-rated scope instead.
Second, this is a $55 scope. The turrets are capped and finger-adjustable, which is right for a rifle you zero and leave alone, and wrong for one you dial on every shot. Nobody has field-tested the Pro Rimfire in public yet, so tracking and repeatability are unproven. At this price that is the trade you are making, and it is the same trade the Tasco asked for.
Verdict
If you are replacing a dead budget rimfire scope on a 10/22 and you want the nearest current equivalent, this is it: same format, same price class, a better reticle, in stock. If you shoot past 100 yards, want exposed target turrets, or need an airgun rating, spend more. Check what base is on your receiver first.
Check the current price on the Simmons Pro Rimfire 3-9×32
For the rest of the options, including red dots, see our Ruger 10/22 scope guide.
