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Comprehensive Guide to HTC 310-225 RN Load Data for Reloaders

Comprehensive Guide to HTC 310-225 RN Load Data for Reloaders

Reloading your own ammunition can be a rewarding process, offering precision and control over the performance of each shot. Whether you’re a seasoned reloader or a beginner looking for detailed guidance, understanding specific load data is essential for getting the most out of your rounds. This guide focuses on HTC 310-225 RN load data, providing you with critical insights into reloading the 225-grain round nose (RN) bullets for precision shooting.

The HTC 310-225 RN is a versatile bullet, and reloading it with the right powder charge and seating depth can significantly improve your firearm’s accuracy, consistency, and overall performance. Let’s dive into the specifics of HTC 310-225 RN load data to help you create the perfect round for your needs.

What is HTC 310-225 RN?

The HTC 310-225 RN refers to a cast lead bullet with a 310 caliber diameter and a 225-grain weight. The “RN” stands for “Round Nose,” a classic bullet design used in both target shooting and hunting. HTC bullets are often coated with a Hi-Tek polymer, which improves their performance by reducing barrel leading and enhancing their aerodynamic properties.

This bullet is commonly used for handloading rifle or handgun cartridges, particularly for those who prefer heavier, slow-moving rounds that deliver strong stopping power and deep penetration.

Understanding Load Data for HTC 310-225 RN

When it comes to reloading, having the correct load data ensures that you’re using the right amount of powder and setting the bullet properly in the casing. It also helps ensure safety by preventing overpressure, which can damage your firearm or cause injury.

Here are the key components of load data to consider:

  • Powder Type and Charge
  • Seating Depth (Overall Cartridge Length)
  • Primer Type
  • Case Type and Preparation

1. Powder Selection and Charge

Selecting the correct powder is critical for optimizing the performance of your HTC 310-225 RN rounds. Different powders will yield different velocities and pressures, so it’s important to choose the right one based on your desired results.

Common powders used for heavy bullets like the 225-grain HTC include:

  • Hodgdon H110: Known for delivering high velocity with minimal recoil, H110 is often a top choice for heavy rounds like the HTC 310-225 RN. The typical charge range for this powder is around 18.0 to 22.0 grains, depending on the desired velocity and the firearm being used.
  • Alliant Unique: A versatile powder often used for handgun cartridges, it provides consistent burn rates and is suitable for moderate velocities with the HTC 225-grain bullet. Start with a lower charge of around 7.0 to 8.5 grains and increase as needed, staying within safe pressure limits.
  • IMR 4227: Another popular powder for larger calibers, IMR 4227 offers excellent control over velocity and pressure. For the HTC 310-225 RN, typical charge weights range from 14.5 to 18.0 grains.

Important: Always refer to the powder manufacturer’s data to ensure safety and accuracy when working with different powders. Never exceed the recommended maximum loads.

2. Seating Depth (OAL)

The Overall Length (OAL) or seating depth is crucial for safe and efficient firing. Improper bullet seating can lead to pressure issues or feeding problems in semi-automatic firearms.

For the HTC 310-225 RN, a typical OAL (overall cartridge length) should be around 1.250 inches for handgun rounds. Rifle rounds might have a different OAL depending on the caliber. You can adjust this slightly based on the specifics of your firearm’s chamber, but maintaining a consistent OAL ensures that your rounds perform reliably.

Seating the bullet too deeply can increase pressure, while seating it too shallow can result in poor feeding or bullet instability. Make sure to double-check your firearm’s specifications to get the most accurate measurements.

3. Primer Selection

When loading 225-grain bullets, selecting the right primer is just as important as the powder. The primer must provide enough ignition to burn through the powder completely, especially for slower-burning powders.

For HTC 310-225 RN rounds, large pistol primers or large rifle primers are typically recommended, depending on the cartridge you’re using. Some reloaders prefer magnum primers for rounds with slower-burning powders, as they provide a more powerful spark for complete ignition.

4. Case Type and Preparation

Proper case preparation is essential to ensure safety and efficiency. Always ensure that your brass cases are:

  • Clean and free of debris: Use a tumbler or ultrasonic cleaner to remove any dirt or powder residue.
  • Sized correctly: Use the correct sizing die to ensure the case fits the chamber of your firearm perfectly.
  • Trimmed to the proper length: Overlong cases can create pressure problems. Always trim your cases to the manufacturer’s recommended length.
  • Properly crimped: Light crimping can improve bullet retention and feeding, especially in semi-automatic firearms.

Why Choose HTC 310-225 RN Bullets?

Reloaders choose HTC 310-225 RN bullets for several reasons. Here’s why they’re popular among shooters:

1. Heavyweight Stopping Power

The 225-grain weight offers significant stopping power, making it ideal for hunters and shooters who need deep penetration and high impact. This bullet weight is especially effective for taking down medium to large game.

2. Versatility Across Platforms

The HTC 310-225 RN can be used in both rifles and handguns, depending on the caliber of the cartridge. This versatility makes it a popular choice for shooters who reload for multiple firearms.

3. Hi-Tek Coating for Cleaner Shooting

Many HTC bullets come with Hi-Tek polymer coatings, which help reduce leading in the barrel. This coating ensures that the bullets glide more smoothly through the barrel, reducing the amount of lead residue left behind, which also minimizes the need for frequent cleaning.

4. Consistency in Accuracy

The round nose design and heavy grain weight offer great accuracy for both short-range and long-range shooting. When paired with the right powder and load data, shooters can expect consistent groupings.

Tips for Safe Reloading of HTC 310-225 RN

Reloading can be highly rewarding, but it must be done with care to ensure safety. Here are a few tips to keep in mind:

  • Always follow load data: Stick to the recommended powder charges, seating depths, and primer types. Never exceed maximum load data to avoid dangerous pressure levels.
  • Start with the minimum load: Especially when experimenting with a new powder or primer, always start with the minimum recommended charge and work your way up, watching for signs of overpressure.
  • Inspect each case carefully: After resizing and cleaning, ensure that each case is free of cracks, splits, or excessive wear. Damaged cases can cause misfires or, worse, case failure.
  • Keep records: Maintain detailed records of your load data, including the powder charge, bullet seating depth, and performance results. This will help you refine your loads over time.

FAQs

What is the best powder for reloading HTC 310-225 RN bullets?
Popular powders for this bullet include Hodgdon H110, Alliant Unique, and IMR 4227. Always refer to specific load data for precise measurements.

Can I use these bullets in both handguns and rifles?
Yes, the HTC 310-225 RN bullets can be used in both handguns and rifles, depending on the caliber. Ensure you follow the proper load data for your firearm.

What is the ideal seating depth for HTC 310-225 RN bullets?
A common seating depth for handgun cartridges is around 1.250 inches, but this can vary depending on the firearm and the cartridge you’re reloading.

Do I need a special primer for HTC 310-225 RN rounds?
In most cases, a large pistol or large rifle primer will suffice. For slow-burning powders, magnum primers may be necessary to ensure proper ignition.

What makes the HTC 310-225 RN a good choice for reloading?
These bullets offer excellent stopping power, versatility, and accuracy, making them a great option for both target shooting and hunting.


Reloading the HTC 310-225 RN bullet is an excellent way to fine-tune your ammunition for specific shooting needs. With careful attention to powder choice, seating depth, and primer selection, you can create high-performing rounds that offer accuracy, consistency, and power. By following this guide to HTC 310-225 RN load data, you’ll be well on your way to producing reliable, effective ammunition for your shooting activities.

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