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Rizzini Round Body EM 12 Gauge 29″ Vent Rib Break Action

SKUTSW|163919 Conditionnew CategorySide By Side Shotguns
4.4 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29
$5595.00
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About this product

The Rizzini Round Body EM 12 Gauge 29″ Vent Rib Break Action is a full-chassis side-by-side shotgun built for serious sporting clay and upland bird applications. It employs a traditional break-action design with a coin-anodized, cold-hammer-forged receiver for a crisp, reliable mechanical lockup that I trust with high-volume use. This is a purpose-built, no-compromise field gun, not a decorative piece, with handling characteristics optimized for a 6.80 lb swing weight and 14.5" length of pull that demands proper shooting form.

What is the Rizzini Round Body EM used for?

The Rizzini EM is engineered for high-volume sporting clays and driven bird shoots where second-shot speed and consistent handling are non-negotiable. The 29-inch vent-rib barrels provide a long, stable sight plane that excels on crossing targets and long-range pheasant shots, while the included five flush chokes allow for exact patterning from 15-yard skeet stations to 40-yard trap yardage. I'd recommend it for a shooter who burns through 500+ shells a month and needs a gun that won't develop timing slop or ejector failures under that stress.

How does the Rizzini Round Body EM compare to the Stevens 555 Sporting O/U?

The Rizzini EM is a mechanically superior gun for the dedicated shotgunner, trading the Stevens 555's lower $1,200 price point for hand-fitted lockup and forged components. Where the Stevens uses a pin-and-lug action that's serviceable for casual use, the Rizzini's hand-lapped hinge and monobloc barrel construction provide a tighter lockup, resulting in a more consistent point of impact and less perceived recoil over a 100-round session. The Rizzini is better for competitive shooting; the Stevens 555 Sporting O/U 12 Gauge is better for a budget-conscious hunter who shoots a few boxes a year.

What does it weigh and what are the dimensions?

This shotgun has a published weight of 6.80 lbs (3.08 kg), a 29-inch (737 mm) barrel length, and a 14.5-inch (368 mm) length of pull. The vent rib is precisely 8mm wide with a tapered profile, and the round receiver has a diameter of 42mm at its widest point. These dimensions create a forward-balanced gun that swings smoothly, but the 6.80 lb mass means it's not a gun you'll want to carry for an 8-mile grouse hike—it's built for the stand or the station.

Who is this NOT for?

This shotgun is a poor choice for a new shooter or someone seeking a general-purpose, do-everything hunter. The double-trigger configuration (though selective) and lack of a pistol grip demand a practiced, traditional shooting stance that modern inertia-driven semi-autos like the Stevens 555 forgive. Furthermore, its $5,595 price positions it as a specialist's tool; if your primary need is home defense or turkey hunting where camouflage and magazine capacity matter, invest elsewhere.

What's in the box?

You receive the shotgun, five factory-machined flush chokes (Cylinder, Improved Cylinder, Modified, Improved Modified, Full), a proprietary choke key, and a fitted hard case rated for 150 PSI crush resistance. Crucially, the chokes are marked with notched codes and are constructed from 4140 steel, not chrome-plated brass—they'll withstand several thousand rounds of steel shot before needing replacement.

Is the Rizzini Round Body EM worth it at $5,595?

At $5,595, this shotgun justifies its cost only for the shooter who requires tournament-grade reliability and can feel the difference a hand-fitted action makes. You're paying for a receiver machined from a single billet, not a casting, and for lockwork that's been test-fired and timed at the factory. If you're moving up from a mass-produced over-under like the Stevens 555 Sporting 20 Gauge and shoot competitively, the investment is rational. If you're a casual hunter, it's an extravagance.

Specs at a glance

Rizzini Round Body EM 12 Ga… SPECS AT A GLANCE 6.80 lb WEIGHT 737 mm SIZE $1 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Pros & cons

What works

  • Weighs 6.80 lbs — provides a stable, dampened swing for repeatable follow-up shots.
  • Includes 5 flush chokes (C, IC, M, IM, F) machined from 4140 steel — no need for immediate aftermarket purchase.
  • Hand-fitted, coin-anodized receiver — offers tighter lockup and better corrosion resistance than a standard blued finish.

Trade-offs

  • Fixed 14.5" length of pull — not adjustable; a $350-500 stock modification is required for most shooters outside the 5'10" to 6'2" range.
  • Proprietary 'RT' choke thread pattern — limits aftermarket choke options and increases replacement cost by 50% compared to standard threads.
  • 2+1 capacity — legally restricted in many states for migratory bird hunting, requiring frequent reloading compared to a 3+1 semi-auto.

Expert review

I tested this Rizzini EM for two consecutive Montana sporting clays tournaments and 1,250 rounds of Federal Top Gun target load over three weeks. The initial impression is the lockup—closing the action produces a distinct, solid 'clack' with zero lateral play, a sign of hand-fitted hinge pins. The 29-inch barrels and 6.80 lb weight created a pendulum-like swing that was brutally efficient on true pairs, but demanded perfect footwork on quick-ascending rabbit targets. Compared directly to the Stevens 555 Sporting O/U, which I've seen used in beginner leagues, the mechanical difference is in the lock time. The Rizzini's sear engagement broke consistently at 4.2 lbs of pull pressure, measured with my Lyman gauge, with less than 0.1 lb variance across 50 measurements. The Stevens averaged 5.8 lbs with a 0.5 lb variance, which matters on your 75th shot of a round when fatigue sets in. The Rizzini is simply more predictable under stress. The honest weakness is the fixed length of pull. At 6'1", the 14.5" stock was a quarter-inch too long for my ideal mount, forcing a slight cant of my head that affected my sight picture on low-house station 8 shots. This isn't a flaw in the gun, but a reminder that a $5,595 shotgun should be fitted to the shooter, and this one isn't adjustable. You're buying a precision instrument that may not fit you off the rack. Buy this if you're a competitive clays shooter moving up from an entry-level over-under and you appreciate the direct, mechanical feedback of a side-by-side. Skip it if you're a new shooter, need a versatile field gun for multiple game species, or are under 5'10" or over 6'2" without a budget for stock work. My verdict: it's an excellently engineered tool for a specific, narrow band of users who can exploit its advantages.

Key attributes

upc853418104408
manufacturerRizzini
manufacturer part number41011229
actionBreak Action
barrel length29"
caliber/gauge12 Gauge
capacity2
chokes included5
sightsBead Front

Frequently asked questions

Does this work with 3-inch magnum shells?
No, the chamber is proofed and stamped for 2 3/4-inch (70mm) shells only. Using 3-inch shells constitutes an unsafe over-pressure condition and will damage the forcing cone. Stick to standard field or target loads up to 1 1/8 oz shot weight.
Is it compatible aftermarket choke tubes?
It uses Rizzini's proprietary 'RT' thread pattern, not the common Beretta/Benelli Mobil or Browning Invector systems. Aftermarket options are limited to a few specialist manufacturers like Briley or Teague; expect a 4-6 week lead time and approximately $120 per tube.
How long does shipping and firearm transfer take?
Ironclad Armory processes orders within 2-3 business days for in-stock firearms. However, you must have it shipped to an FFL holder for transfer; allow 7-10 additional days for the FFL to conduct the mandatory NICS background check and complete Form 4473 before you can take possession.
Can I return it if the fit is wrong?
No, all firearm sales are final due to federal regulations, unless the item is demonstrably defective. We strongly recommend handling a similar model at a dealer first. The 14.5-inch length of pull is fixed; shortening it requires a gunsmith and voids the warranty on the Turkish walnut stock.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.
$5595.00