What's the Right Primer Size for 6.5 Creedmoor Reloading?

Ammunition & Reloading
1

Seeking Advice on 6.5 Creedmoor Primer Size

I’m diving into reloading for my 6.5 Creedmoor and I’m a bit confused about primer sizes. I’ve seen information about both small and large primers being used, and I want to get a clearer understanding of which I should be using for optimal performance.

Here are a few questions I have:

  • Compatibility: Are small and large primers interchangeable considering the same load?
  • Brass Selection: How does the type of primer affect the choice of brass?
  • Pressure Handling: What are the implications of using one primer size over the other in terms of pressure and performance?
  • Recommendations: Can anyone share their experiences with specific primer brands or types that work best with the 6.5 Creedmoor?

I know that reloading can be a bit of an art, so I’m hoping to tap into the collective knowledge of this community. Any tips, personal experiences, or resources would be greatly appreciated! Let’s get a discussion going on what works best for our beloved 6.5 Creedmoor.

Thanks in advance for your insights!

2

When reloading for the 6.5 Creedmoor, you’ll typically want to use Small Rifle primers. These have a tighter fit and can provide more consistent ignition across the powder charge.

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3

I agree, but I’ve heard some people use Large Rifle primers too. What specific differences have you noticed in performance?

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4

Using Large Rifle primers can sometimes lead to higher pressures. That said, the performance can depend on your specific load and rifle. It’s definitely about balancing your setup.

5

Good call! I’ve been leaning toward Small Rifle primers for the consistency and reliability. What brands do you all prefer for best results?

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6

I swear by CCI primers for my 6.5s! They ignite cleanly and help maintain accuracy. Anyone had a bad experience with them?

7

I use Federal primers usually; they work great too! Just curious, how much does primer selection really shift your group sizes?

8

From my experience, the right primer can improve consistency by at least a quarter MOA. It’s subtle but noticeable at the range!

9

Interesting! I’ve only ever used Winchester primers. Guess it’s time to experiment a bit more. What do you think I should try first, Federal or CCI?

10

I would suggest CCI. They’re known for great consistency, especially in higher-pressure loads like the Creedmoor.

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11

I find the difference in groups with different primers fascinating. Sometimes I wonder if it’s just in my head or if it’s real! Anyone else feel this way?

12

It’s absolutely real! I was shocked the first time I tested a new primer against my usual. The difference can be major.

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13

Haha! I’d love to see that at the range! But in all seriousness, stick to the recommended sizes for best results.

14

Here’s a funny thought: Can we just use whatever fits? Like, a Large in one hole and a Small in the other?! Just kidding; I know it doesn’t work like that!

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15

Ultimately, using the right primer size can significantly impact performance. It’s worth spending time on your setup to find what works best for you!

16

I’ve been using CCI BR4 primers for my 6.5 Creedmoor loads, and they offer great consistency and accuracy. Highly recommend giving them a try!

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17

I second the CCI BR4! They’ve worked wonders for my precision shooting, and I love how they handle lower temperatures too.

18

I generally stick with Federal 210M primers for my reloads. They have consistently provided solid performance in my testing. Anyone else used these?

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I’ve used those as well, and while they are decent, I felt the CCI BR4 outperformed them in accuracy for my loads.

20

Primers can make a huge difference! I’d recommend testing a few brands yourself. It can be surprising how they can change your group sizes.