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Heritage Rough Rider Big Bore .45 Colt
.45 Colt • Heritage Manufacturing

Heritage Rough Rider Big Bore .45 Colt

Model: RR45B4

6
CAPACITY
4.75"
BARREL
2.3
LBS
Single Action
ACTION
.45 Colt
CALIBER
MSRP

Full Specifications

Action Type Single Action
Trigger Single Action
Safety Transfer Bar + Inertia Firing Pin
Optic Ready No
Overall Length 9.45"
Barrel Length 4.75"
Weight 36.0 oz (2.25 lbs)
Frame Material Steel
Frame Finish Blued
Grip Type Cocobolo
Country of Origin USA

About This Firearm

Heritage Manufacturing built its reputation on the .22 LR Rough Rider — a cheap, functional plinking sixgun that sold by the thousands at every Walmart and big-box outdoor counter for two decades. The Big Bore is a different category: Heritage's first serious entry into centerfire SAA-pattern revolvers. The 4.75" barrel and 36 oz steel-frame package in .45 Colt is built on a meaningfully heavier and more substantial frame than the rimfire Rough Rider, with a transfer-bar safety paired with an inertia firing pin for all-six-chambers-loaded carry — a feature the Colt SAA and most Italian clones cannot offer.

The surprise with this gun is how much capability Heritage packed into the budget end of the market. The cocobolo grips and blued steel finish look the part, the transfer bar makes it safer to carry than any Colt-pattern SAA, and the steel frame handles standard .45 Colt loads without complaint. The limitations are real: owners and reviewers commonly note that Heritage's QC runs more variable than Ruger or the Italian-made SAA clones — some guns ship perfectly tuned, others have timing issues that need warranty work. For a buyer who wants an honest centerfire SAA-pattern revolver without committing to a premium price tier, the Big Bore earns its place — but expect to inspect the gun on receipt and check timing and lockup before shooting.

Best For

GOOD
First .45 Colt SAA / Budget Entry
The Big Bore is the lowest-cost path to owning a steel-frame .45 Colt SAA-pattern revolver from a U.S. manufacturer. The transfer-bar safety is a meaningful advantage over a Colt SAA or Italian clone for a buyer who wants to load all six chambers without learning traditional five-round carry. For shooters trying out SAA-style revolvers without a major investment, this is the obvious starter.
FAIR
Cowboy Action Competition
The Big Bore is SASS-legal in basic configuration but Heritage's action is heavier and less consistent than Pietta or Uberti out of the box. Competitive cowboy shooters typically choose Ruger or a tuned Cimarron over Heritage. For a casual SASS shooter who just wants to participate, it works.

Strengths & Limitations

Strengths
  • Transfer-bar safety paired with inertia firing pin allows all six chambers to be loaded safely — a feature most Colt-pattern competitors at this price tier cannot match
  • Steel-frame construction handles standard .45 Colt loads without the wear concerns of an alloy or plated frame
Limitations
  • Heritage's quality control runs more variable than Ruger or the Italian makers; check timing, lockup, and cylinder gap on receipt before shooting
  • Aftermarket support (action work, replacement grips, holsters) is thinner than for the Ruger Blackhawk or major Italian clones
  • Limited to standard SAAMI-pressure .45 Colt — no Ruger-only hot loads, and no manufacturer guidance for +P or hunting recipes

Category Rankings

How the Heritage Rough Rider Big Bore .45 Colt ranks among full-size .45 Colt handguns.

Capacity
#1 of 11
Top 9%
6 rds
Weight
#2 of 11
Top 18%
2.3 lbs
Barrel
#6 of 11
Top 55%
4.75"
Overall Length
#2 of 10
Top 20%
9.45"

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Where to Buy

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Frequently Asked Questions

How does the Heritage Big Bore reliability and durability compare to a Ruger Blackhawk?

Honest answer: not as good. The Ruger Blackhawk is built to industrial tolerances with consistent action quality and a service network that has been refining the same design since the 1950s. The Heritage Big Bore is a newer platform built to a lower price point, with QC that owners describe as variable — some guns ship perfectly, others have timing issues that need warranty work. For shooters who plan to run thousands of rounds through one revolver, the Ruger is the better long-term investment. For occasional shooting, the Heritage usually holds up fine.

Is the Heritage Big Bore the same gun as the .22 LR Rough Rider, just rechambered?

No. The Big Bore uses a meaningfully larger and heavier steel frame to handle centerfire pressures. The rimfire Rough Rider would not survive .45 Colt pressure. Heritage developed the Big Bore as a separate platform — the visual style is similar (it's still a Heritage Rough Rider in family appearance) but the internals, frame, and cylinder are scaled up for the centerfire role.

What should I check on a new Heritage Big Bore before firing it?

Three things. First, cylinder timing — slowly cock the hammer and verify the cylinder locks up before the hammer is fully back. Second, cylinder gap — should be roughly 0.004-0.008" with a feeler gauge; tighter or wider can indicate a problem. Third, barrel-cylinder alignment — a bore light through each chamber should show clean concentric circles, not offset shadows. If any of these fail, contact Heritage warranty before shooting.