Gun Safe & Fire Safe Fire Rating Comparator

Last updated 2026-08-24

Fire safes and gun safes all advertise a number of minutes. What that number was actually tested against is where brands stop agreeing. We fetched five brands' own current product pages directly and found two different kinds of claim sitting side by side on the same shelf, unlabeled as such.

Self-tested brands hold the temperature flat no matter how long they claim. Browning's own page states 155 minutes at 1,200°F for one safe and 140 minutes at 1,200°F for another — same temperature, different claimed time. Liberty's own page confirms its furnace test "ramp[s] up the heat to 1200 degrees within ten minutes" and holds it there for the whole test, regardless of the model. A longer self-tested claim means a longer test, not a hotter one.

UL Classified tests get hotter as the claimed duration gets longer — the opposite pattern. SentrySafe's own pages state its 30-minute-rated Fire Chest was tested at 1,550°F and its 1-hour-rated S6770 was tested at 1,700°F — a harsher test for the longer claim, because Underwriters Laboratories, an independent third-party lab, models a real fire getting hotter the longer it burns. One directly-fetched explainer put the practical result plainly: "A 45-minute rating at 1,400 degrees is not the same as a 45-minute rating at 1,200 degrees. The higher temperature represents a more severe fire scenario." By that logic, Browning's self-tested 155-minute claim was never even tested at the temperature SentrySafe's UL-Classified 30-minute safe had to survive.

Every stated figure, unfiltered

This table doesn't depend on what you picked above — every figure this page cites, straight from each brand's own current page.

Brand	Model	Claim	Test basis	Their own note
Browning	Platinum Series 49	155 min	1200°F, self-tested	their own stated "155 minutes at 1,200°F," self-tested
Browning	Medallion Series 49	140 min	1200°F, self-tested	their own stated "140 minutes at 1,200°F," self-tested
Liberty	Franklin	110 min	1200°F, self-tested	their own stated "110 minutes... at 1200°F," self-tested
Cannon	Honor 91	90 min	1200°F, self-tested	their own stated "90 minutes at 1200 degrees," self-tested
Winchester	Ranger 44	60 min	1400°F, self-tested	their own stated "60-Minute fire rating at 1400º F," self-tested
SentrySafe	S6770	60 min	1700°F, UL Classified	their own stated "UL Classified... 1 hour in up to 1700°F," independently tested
Winchester	Ammo 14	45 min	1400°F, self-tested	their own stated "45-Minute fire rating at 1400º F," self-tested
Cannon	24-Gun Safe	30 min	1200°F, self-tested	their own stated "30-Minute Fire Resistance at 1200°F," self-tested
SentrySafe	Fire Chest 1210	30 min	1550°F, UL Classified	their own stated "UL Classified... 30 minutes at 1550°F," independently tested

Why "minutes" alone isn't a fair comparison

Two directly-fetched sources describe the gap between the two kinds of claim. usa-gun-shop.com states: "UL-listed fire ratings are tested by Underwriters Laboratories, an independent third-party testing organization... UL subjects it to standardized, repeatable fire conditions using calibrated equipment. UL engineers verify the results. UL certifies the rating," against "Self-tested fire ratings mean the manufacturer conducted their own test, in their own facility, with their own equipment, following their own protocol. There's no independent verification." secureitgunstorage.com is blunter about self-administered tests: "Manufacturers devised their own test, deliberately crafted to ensure passing results." Neither claim is fake — every number on this page is quoted directly from the brand's own current page — but they are not the same kind of promise, and a shelf label showing only "90 minutes" doesn't say which one you're looking at.

What this does not do

It compares specific named models per brand, not every safe each one sells.
It cannot tell you whether YOUR insurer requires a UL-Classified rating specifically — that's a policy question for your insurer, not something any safe's own page states.
None of the brands' own pages fetched for this tool state a rating above 1200°F using anything but a flat test temperature per model line — this page cannot show a self-tested brand "scaling up" temperature with duration because no source found does that; only the UL-Classified rows do.
It is not a fire-safety recommendation. These are each brand's own marketing or product-spec copy, not an independent test this project ran itself, and none of the figures here account for a safe's age, door seal wear, or a fire that burns longer than the rated duration.

Runs entirely in your browser. Nothing you type is sent anywhere. The bike lock security rating comparator found a related shape — competing rating systems that don't convert into each other — in a different kind of security product, and the paper shredder security level comparator found brands applying an identical published standard's own tier names inconsistently. The insulated drinkware temperature retention comparator found the same self-reported-vs-disclosed-basis split again, in personal tumblers and bottles rather than safes.