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Best 303 British Ammo

What is 303 British ammo? πŸ€”

Originally developed for the British military in 1888, this ammo is a rimmed, .303-inch caliber rifle cartridge. It was used by the British Army and Commonwealth forces during World War I and II in their Lee Enfield rifles. Today, it’s still popular with sportsmen and hunters who need fast and accurate shots at long range.

303 British Ammo

Features ✍️

  • πŸ’₯ Projectile Weight: The weight of the bullet is a crucial factor in determining the performance of the 303 British ammo. Most bullets range from 150 grains to 174 grains, with heavier bullets being suited to long-range shooting while lighter ones are better for close-range shooting.
  • πŸ’₯ Bullet Design: The design of the bullet plays an integral role in determining its accuracy and penetration ability. Some typical bullet designs include a boat tail, round nose, and soft point.
  • πŸ’₯ Armor-Penetrating Capability: This ammo has a reputation for its armor-penetrating capabilities, given its use in World War I and II. With this capability, the bullet is capable of piercing through steel and other hardened materials.
  • πŸ’₯ Recoil: Recoil refers to the action of the gun after firing a shot. The recoil of such ammo is relatively manageable, making it easy to maintain accuracy while shooting.
Our Top Pick
303 British Ammo
Get ready for deer hunting season with this ammo! Each bullet expands on impact without fragmenting or damaging meat, fur, or other parts of the animal. On top of that, muzzle velocity can reach up to 2,460 feet per second for excellent long-range accuracy and performance. When you buy ammunition you get more than just quality bullets - you’re supporting a company trusted by hunters worldwide since 1866. Make sure to pick up your box of this ammo today!
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Benefits πŸ”₯

303 British ammo is a versatile and reliable ammunition choice for hunting and target shooting.

  • ❇️ One major benefit is its accuracy. Due to its design and construction, this ammunition is known for its ability to deliver consistent and accurate shots, making it an excellent choice for precision shooting and hunting.
  • ❇️ In addition to its accuracy, it is also known for its stopping power. This powerful ammunition is capable of taking down even large game animals such as deer and elk, making it a popular choice for hunting enthusiasts.
  • ❇️ Another benefit is its affordability. Compared to other types of ammunition, this ammunition is relatively inexpensive, making it a great choice for budget-conscious shooters who don’t want to sacrifice quality for cost.

Best 303 British Ammo

How to reload? 🀠

Handloading 303 British ammo requires precision and patience to get it right.

  • πŸ’£ Before you start, make sure you have all the necessary supplies and equipment. You’ll need reloading dies, a press, brass cases, primers, propellant powder, and bullets.
  • πŸ’£ Once you have all your supplies together, it’s time to prepare the brass cases. This includes cleaning them inside and out using a tumbler or media separator; reaming primer pockets if needed; swaging any crimped primer pockets; then finally resizing each case before moving on to the next step.
  • πŸ’£ Next, you’ll need to add the primer and powder. Carefully measure out your powder charge using either a mechanical or volumetric powder measure and gently seat it in each case. Once that’s done, prime the cases using either a hand primer tool or press with the priming arm.
  • πŸ’£ Finally, you’ll need to choose and load your bullets for your specific cartridge.Β Use a bullet seating die to ensure proper bullet seating depth and crimp as necessary for semi-auto firearms.

Best 🎯 303 British Ammo Reviews

1# 303 British – 174 Grain FMJBT – Prvi Partizan

303 British - 174 Grain FMJBT - Prvi PartizanΒ 

200 Rounds

Looking for a top-quality range round to keep your old Lee-Metford or Lee-Enfield rifle in good condition? Look no further than this 303 British cartridge by Prvi Partizan. It’s topped with a 174-grain projectile, just like the loading introduced in 1910. The bullet’s core is surrounded by a full metal jacket, which will function reliably in your rifle and prevent accuracy-decreasing lead residue build-up in the gun’s riflings. So if you need a top-quality, accurate range round for your old Lee-Metford or Lee-Enfield rifle, this Prvi Partizan 303 British cartridge is a perfect choice.

  • Full metal jacket bullet prevents accuracy-decreasing lead residue build-up
  • The uniform concentricity of the bullet’s jacket and evenly distributed core contribute to its outstanding accuracy
  • Boat tail design further enhances the ballistic coefficient
  • May not be compatible with all rifles


How do check the casings? πŸ”

  • πŸ›Ÿ It is important to check the casings of 303 British ammo, and the best way to do so is to inspect every one for dents, scratches, or any other signs of damage that could affect its accuracy or reliability.
  • 🚩 You should also look for consistent thickness and shape on all the casings. If you are uncertain about what to look for, it may be wise to consult an expert who can provide more detailed advice on checking cartridges.
  • ❄️ It’s also important to note that ammunition can be extremely sensitive to temperature variations, so it’s essential to store your ammo in an appropriate environment. Generally speaking, this should be somewhere cool and dry with good air circulation – such as a climate-controlled gun safe or locker-style safe.


How many rounds does a 303 British hold?

β˜‘οΈ It was officially adopted as the standard service cartridge of the British Armed Forces in 1888, replacing the .577/450 Martini-Henry.

πŸ”Ά The 303 British has a capacity of five rounds.

Is 303 ammo good for hunting?

⚑ The 303 British is a very versatile cartridge and can be used for hunting a variety of game animals.

🀠 It fits both hunting large game and small.

How far can a 303 shoot?

πŸ€” The range of a 303 British round depends on several factors, such as the type of bullet and the particular rifle used.

  • 🎯 Generally speaking, when fired from a full-length rifle barrel, this round can travel up to 2,200 yards or more.
  • 🎯 For most shooters, especially those using modern sporting rifles ranges up to 700 yards can be expected.
Is 303 British ammo interchangeable?

🀨 The short answer is a definite no.

πŸ”° 303 British ammunition has unique design features which make it incompatible with any other rifle round.

🚨 It is important to note that this ammo is not considered interchangeable with other calibers, even if they are similar. For example, some shooters mistakenly think that 7.62×51 NATO can be used as a substitute for 303 British ammo, but this is not the case. The two rounds have different velocities, pressure, and case dimensions which may result in dangerous consequences if used interchangeably.

Is 303 British more powerful than 30-06?

πŸ’£ When comparing the two rounds, the 303 British is slightly less powerful than the 30-06. This is because the 303 British has a slightly smaller bullet diameter and muzzle velocity.

  • ✨ However, due to its unique construction, it can still be an effective round for hunting, target shooting, and military applications.
  • ✨ The 303 British also has a reputation for being more accurate than other rifle calibers and is often used by competitive shooters in long-range competitions.

Conclusion 😊

The 303 British cartridge is a powerful round with plenty of history and remains popular today for hunting, sporting, and target shooting. In this blog post, we gave you some information on the top-rated ammo and provide tips on how to choose the right rounds for your needs. Stay safe and have fun shooting! 😎🎯

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Ben Thomson
Ben Thomson
10 days ago

I own a Lee-Enfield No. 4 MkII rifle chambered in .303 British, which was manufactured in 1949. I visited a local Dick’s store to purchase ammunition for my rifle, but they didn’t carry it in stock. During my conversation with a clerk, he advised me not to use modern ammunition in my rifle. Unfortunately, I had to leave before I could ask for more information on this matter, such as the reason for this advice and what type of ammunition would be suitable for my rifle. Could someone please provide me with an explanation on this matter and suggest the best ammunition for my Lee-Enfield No. 4 MkII rifle?

Reply to  Ben Thomson
10 days ago

The statement that modern .303 ammunition is loaded to military specifications or lower pressure is inaccurate. It is more likely that companies producing such ammunition use lower pressure loads due to cost-cutting measures and market demand. The advice given by Dick’s store clerk about not using modern ammunition in the Lee-Enfield No. 4 MkII rifle may not be valid unless there is a problem with this particular model.

Gabriel Roberts
Gabriel Roberts
Reply to  Ben Thomson
10 days ago

The advice given by the store clerks to not use modern ammunition in a Lee-Enfield No. 4 MkII rifle is baseless. This rifle is one of the most recent models designed to fire .303 rounds. Therefore, the statement made by the clerk is nonsensical. The only scenario where low-pressure ammunition might be considered is when you use an 1890s long Lee rifle, which was designed for black powder loads. The advice given may hold some merit in such a case, but it is irrelevant for a post-World War II Enfield rifle like the Lee-Enfield No. 4 MkII.

10 days ago

When I shoot my Lee Enfield rifle, I tend to use PPU or Sellier & Bellot ammunition, and I can’t discern any significant differences in performance between the two brands. Generally, I buy the cheaper of the two options, which is usually PPU, and I tend to purchase it in bulk online. I then use this ammunition for an extended period.

Corey Mccarthy
Corey Mccarthy
Reply to  Bellstorm
10 days ago

It’s worth noting that surplus No. 4 rifles may have excessive headspace that wouldn’t be acceptable in modern commercial rifles. This was done intentionally to allow for the use of subpar ammunition in the field. To avoid issues with this, it’s best to use ammunition with a thicker brass case, as it won’t rupture when it encounters the unsupported gap. Most .303 commercial ammunition is manufactured with this in mind. While I can’t specify which brands to avoid, steering clear of the cheapest options should be sufficient.

10 days ago

I’m seeking reloading advice for my No4 Mk1 rifle, which I’ll be used primarily at the range and possibly for military competitions in the future. I plan on using a Lee Loader and I’m looking for recommendations on powder type and projectile type to make it as accurate as possible. I have no intention of using it for hunting. Any advice would be greatly appreciated.

Ricky Wiggins
Ricky Wiggins
Reply to  Pondfront
10 days ago

There are several bullet options available ranging from 115gn to 220gn depending on your preference. I haven’t had much success with .308″ bullets. For powder, my personal favorites are AR2206H and Trailboss, but AR2209 is also a good option. If you’re looking for accuracy, you may want to consider using competition bullets, although the Lee-Enfield rifle itself plays a significant role in determining accuracy. To improve your accuracy, I recommend getting some books on accurizing the Lee-Enfield.

10 days ago

I’m considering purchasing a Lee Enfield No.4 Mk2 from a shop. I understand that it shoots a .303 cartridge, but I’m not sure if there is a difference between it and a British .303 cartridge. I want to ensure that I don’t accidentally damage the rifle when I fire it for the first time.

Harvey Dunn
Harvey Dunn
Reply to  SnowMore
10 days ago

I’m not quite sure what you mean, but your Lee Enfield should use standard .303 British ammunition. Some foreign manufacturers may label it differently, similar to how 6.5x55mm may be labeled as 6.5 Scan. However, be sure not to use .303 Savage as it is not compatible.