Sierra Bullets 6mm/6.5 Creedmoor Load Data


Test Specifications/
Components

Firearm Used: Universal Receiver
Barrel Length:
24”
Twist:
1-8’’
Case:
Hornady
Trim-to Length:
1.910’’
Primer:
Winchester WLR

Remarks:

Official SAAMI drawings for this cartridge and chamber have not been released at this time.  Therefore this cartridge is considered a wildcat, which we will refer to as 6mm/6.5 Creedmoor.  The cartridge drawing provided is based on the reamer used to make the pressure testing barrel utilized during data collection. This reamer and drawing represent the expected version to be released.  As with all wildcats, extra care should be taken to check cartridge OAL and case fit to your individual chamber before firing.

As with almost all cartridge case designs, there is bound to be at least a few aspiring off-spring. The 30 T/C case was no exception. The first notable development was the extremely popular 6.5 Creedmoor.  As soon as the 6.5 Creedmoor was released in 2007, a 6mm version was being envisioned.  After the 6mm Creedmoor demonstrated its worth at 1,000 yards it began to catch the attention of Precision Rifle Series (PRS) competitors.

The 6mm/6.5 Creedmoor is a great fit for those looking for an AR platform friendly cartridge. It delivers velocities very similar to the .243 Win and yet fits the AR10 magazine length requirement, while allowing long range bullets to be seated for maximize case capacity. The 30 degree shoulder makes this a very efficient case and helps prolong case life as well.

The 6mm/6.5 Creedmoor works well with powders such as H4350, RE-17, and Ramshot Hunter for heavier long-range bullet weights.  Slightly faster powders such as RE-15, Win 760, and Vihtavuori N540 work well with lighter weight bullets.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.
 

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

This entry was posted in Load Data, Reloading and tagged , , , , , , . Bookmark the permalink.

22 Responses to Sierra Bullets 6mm/6.5 Creedmoor Load Data

  1. Brittius says:

    Reblogged this on .

    Like

  2. Duane Madoerin says:

    Thanks. But the 100 gr. Bullet is showing .264 diameter not the .243 the other pages are showing.

    Have a good day.

    Duane

    Like

  3. Rafael Antúnez says:

    Thanks!!!

    Like

  4. farmboy1903 says:

    Nice – thanks! I’m on the fence between 6mm and 6.5mm, and this is another good reason to look at the 6mm.

    Like

  5. Mattt says:

    Great !! Finally a source I can trust. I have been shooting a 6xc for a few years and now I can try out the 6mm Creedmoor. Any hopes of providing 6xc data next? Lol

    Thank You Sierra Bullets

    Matt

    Like

  6. Larry says:

    Finally. Great info. Now how about a new manual?

    Like

  7. Jim says:

    Great – thanks! Now how about load data for the .25-45 Sharps? They load your 70 & 75gr bullets in their factory ammo…

    Like

  8. Shane Boyles says:

    Where is the load data for the 142 g smk?

    Like

  9. Shane Boyles says:

    Hey thanks. I found the info I was looking for.

    Like

  10. The Bullshop says:

    I am looking at the new .243″ 110gn bullet. I will be shooting it in a 6×284 with 1/7″ twist. I am looking at the load data presented here but see no indication as to what cartridge was used to develop this data. I have been shooting the 107gn bullet to just under 3300 fps so estimate possible 3200 fps attainable with the 110gn bullet. I am using the Sierra infinity ballistic program in my home pc but this program lacks data on this new 110gn bullet. I have no problem developing my own load data but need help in working up ballistic data. Could you please run a program for me with the 110gn bullet just using standard atmospheric conditions at 5800 ft elevation 40* F with a 300 yard zero , please ?

    Like

  11. Phil says:

    it says 6mm/65mm creedmoor. all i see is 6mm. what am i missing

    Like

    • Phil says:

      dont worry, i found it in a link.
      shame that need all the powders on the list we can not use here in the UK as Europe are banning the powders.
      vihtavuori and Swiss Reloader would be good.

      Like

  12. Scott Sterba says:

    Why is this page labeled 6mm Creedmoor / 6.5 Creedmoor when they are two different calibers and bullet diameters, and you have a separate page labeled strictly 6.5 Creedmoor? Just trying to figure out why this page, showing .243 bullet load data, has a 6.5 Creedmoor label attached to it?

    Like

    • Sorry for the confusion Scott. The official SAAMI drawing has not been released yet. There are firearms, ammo, dies, reamers, etc…., for the 6mm Creedmoor, but no official case drawing has been released. That being said, we had data ready to release. We chose to release it with a cartridge drawing based upon the actual reamer print. Seeing as how the drawing is not SAAMI approved yet, we chose to give it a temporary name as if it were a wildcat by calling it the “6mm/6.5mm Creedmoor”.

      Like

  13. Pingback: Sierra Bullets Publishes 6mm Creedmoor Reloading Data - AK Arms

  14. Jim says:

    Looking good! Pleased I chose the 6mm over the 6.5. H4350 paired with the 100gr. SBT should be good medicine for long range coyotes and perhaps whitetails. However, it’s doubtful I’ll give up my 7mm ’08 and 140gr. SBTs for the latter.

    Like

  15. Brian Haumont sr says:

    Do you sell reloading book with 6.5 creedmoor in it

    Like

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s