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Description
WW2 British .50 Cal (12.7mm) Inert Round – 1940 RA Z Headstamp Royal Arsenal (Copy)This original . 50 calibre (12. 799mm) inert round features a 50 CAL Z RA 1940 headstamp, identifying it as a genuine early World War Two production example manufactured at the Royal Arsenal, Woolwich, London. Dated 1940, this round represents one of the earlier British produced . 50 calibre cartridges from the opening stages of the war. The Royal Arsenal played a key role in supplying ammunition to British forces, and early . 50 calibre rounds such
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 116 reviews
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Product Reviews
★★★★★ 5
It works!!!!
Size: 2 fl oz
This stuff works!!!!!
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Reviewed in the United States on May 29, 2026
★★★★★ 5
STA-BIL Start Your Engines! Because Sometimes Engines Need a Pep Talk
Size: 2 fl oz
So, STA-BIL Start Your Engines! is basically that friend who shows up uninvited but actually saves the day. You know, the one who doesn’t ask questions and just gets your engine running when it’s feeling moody or sluggish.
Does it work? Of course it does. Like, “put a little in your gas tank, say a quick prayer, and voila!” kind of work. Suddenly your car remembers how to start, and you feel like a mechanic genius without actually lifting a wrench.
It’s simple, it’s reliable, and it doesn’t judge you for letting your gas sit around until it gets that “I don’t want to cooperate” attitude.
Pros:
Makes your engine start like it just had an espresso shot.
Easy to use — even if you’re barely awake in the morning.
No weird smells or smoke signals, just clean, smooth starting.
Cons:
Won’t fix your “I forgot to put gas in” problem.
Sadly, can’t make your car drive itself to work (yet).
You might start relying on it a little too much — hey, no judgment.
Final Verdict:
⭐️⭐️⭐️⭐️⭐️ – 5 stars.
If your engine is feeling lazy, this stuff just works. It’s like a pep talk in a bottle for your car. Highly recommended for anyone who’s ever cursed their ignition.
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Reviewed in the United States on October 17, 2025
★★★★★ 5
GREAT PROPDUCT
Size: 2 fl oz
EXCELLENT
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Reviewed in the United States on January 27, 2026
★★★★★ 4
Cleans Out Working Carburetors
Size: 2 fl oz
I recommend this product for engines that will in fact start but not run well. I highly recommend it for that specific purpose, which it is designed for. It cleans the inner workings of the carburetor. Of course, you will have a cleaner carburetor if you take it apart and clean it with proper tools and a proper carburetor cleaner.
You spray it in the gas tank, start the engine, and let it run a bit. It will not start an engine with a totally plugged up carburetor. Nothing is going to do that. Nor is it a fuel stabilizer, as one previous reviewer seemed to think. Nor is it a product to be used to bring life back to stale gasoline, as another reviewer seemed to think. The only thing to do with stale gasoline is drain it out and pitch it. Nor is it a product to be used for cleaning a carburetor you have taken apart to clean. You should use a proper carburetor cleaner for that purpose.
I've given it four stars because it cleans out mildly plugged up carbs. It is not a miracle solution for really neglected carbs as the name suggests.
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Reviewed in the United States on April 12, 2020
★★★★★ 5
Helps fixing small engines
Size: 2 fl oz
⭐⭐⭐⭐⭐⭐⭐
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Reviewed in the United States on May 16, 2026
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