Ruger Precision Rimfire .22 LR
Model: 8400
Ruger Precision Rimfire .22 LR
Model: 8400
Full Specifications
Threaded 1/2"-28 barrel: compare rimfire suppressor prices.
About This Firearm
The Ruger Precision Rimfire is a chassis-stocked bolt-action .22 LR built for rimfire matches and precision practice. It has an MSRP of $629. Its bolt throw switches between a rimfire stroke and a short-action centerfire stroke, which Ruger fitted so that practice here does not teach a shooter to short-stroke a centerfire rifle in a match.
A Picatinny base with 30 MOA of elevation built in is already on the receiver, one 15-round BX-15 magazine comes with it, and a thread protector covers the 1/2x28 muzzle, so an optic and rings still have to be bought. The stock adjusts for comb height and out to a 15.5-inch pull, with marks molded into the chassis so a setting can be repeated. The trigger adjusts from outside with a wrench stored in the buttstock. No sights are fitted at all.
If you're cross-shopping, the Tikka T1x has the same 1/2x28 thread at 5.95 lbs, with a conventional stock and no base fitted, where this rifle carries 6.80 lbs. The CZ 457 has an MSRP of $799, a heavy barrel and an 11mm dovetail instead of a rail, so rings for it have to be bought for that dovetail.
Best For
Strengths & Limitations
- The magazine well takes Ruger's BX-1, BX-15 and BX-25 rimfire magazines, so capacity is a choice the owner makes.
- The thread protector covers the crown as well as the threads, and the crown gets dinged on a rimfire muzzle that lives in a case.
- Ruger fitted its own AR-pattern pistol grip and states that most AR grips and selectors will swap in, so the controls can be changed without a new chassis.
- Magnum rimfire magazines are a different size and must not be used, which catches an owner who also has the .22 WMR version.
- Ruger warns against .22 Stinger, whose case is longer than standard .22 LR and can stick in the chamber.
- One magazine comes with the rifle, so a second and a third are on the owner before a match.
Ballistics Calculator
Calculate trajectory, drop, and energy for .22 LR ammunition.
.22 LR Ballistics →Where to Buy
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Frequently Asked Questions
What twist rate is the barrel?
1-in-16 right hand, the usual .22 LR rate, so standard-velocity match ammunition and bulk loads are both within it.
What is the chassis made of?
One piece of glass-filled nylon, with the adjustable buttstock bolted to the back of it.
What does the bolt throw adjustment actually change?
How far back the bolt travels. Set to the centerfire position it matches a short-action stroke, so the motion learned here is the motion a centerfire bolt needs.
