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Hodgdon CFE 223 powder

 
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  #1  
Old 12-18-2011, 12:21 AM
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Hodgdon CFE 223 powder

Had a great day to do some testing of the CFE 223 Powder.

Please take a look at the Attached PDF.

Tim
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File Type: pdf CFE 223.pdf (13.4 KB, 0 views)
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  #2  
Old 12-18-2011, 09:27 AM
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Re: Hodgdon CFE 223 powder

Very interesting. I saw this on Hodgdons site but haven't seen it for sale around here yet.

Looks promising by your numbers here.
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Old 02-05-2012, 01:59 PM
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Re: Hodgdon CFE 223 powder

Quote:
Originally Posted by shamblin View Post
Had a great day to do some testing of the CFE 223 Powder.

Please take a look at the Attached PDF.

Tim

Great Write-up Shamblin!

Have you done any more testing with other bullets in the 308? Particularly, i'm wondering if you can push 155gr Scenars to 3,000ft/s out of a 24" DPMS LR-308.

I'm looking to build a 600yard F-class rifle, and since i love my LR308 so much, i intend to build another with a 24" barrel for longer range work.

Lastly, it seems that for the 175gr load, you need to test another .2gr higher than where you stopped (assuming you dint see any pressure signs) to see if that 47.4 grain load is an OCW.

Thanks in advance.

Send_It!

Last edited by Send_It; 02-05-2012 at 02:10 PM. Reason: noticed that nother .2gr increase in charge weight for the 175gr load may be warranted.
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Old 02-05-2012, 02:21 PM
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Re: Hodgdon CFE 223 powder

I ran another test with the same loads in a custom built 26 inch built bolt gun.
The numbers where 20 to 23 fps faster with ES and SD even lower.
I shoot 150 FMJ on top of 8208XBR at 2908
3000 would be possible with cfe 223
I would guess it would be a compressed powder load
Over spinning the bullet ?????

Tim
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Old 02-05-2012, 02:49 PM
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Re: Hodgdon CFE 223 powder

As to testing any higher on the 175SMK DPMS 308LR
I did not see or measure any pressure signs
It felt like the buffer was hitting the end pretty hard so I stopped.
Adjustable gas block????Heavierspring?????
I did shoot 47.6 in the bolt gun for a very slight gain, less than 5 fps compared the 47.4
I have the velocity at 2825 for my O3 A3
Very easy clean up

My next range test will be to test 175SMK on top of CFE 223@ 47.3
I am delighted with what I have but always looking for better

Tim
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  #6  
Old 02-05-2012, 03:40 PM
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Re: Hodgdon CFE 223 powder

the stuff is real hard to find most places havent even heard of it yet.

its hodgdons new super powder for mid length powder columns. designed for semi auto rifles. i got ahold of 1 lbs and havent been able to get any more
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Old 02-05-2012, 05:19 PM
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Re: Hodgdon CFE 223 powder

Quote:
Originally Posted by shamblin View Post
As to testing any higher on the 175SMK DPMS 308LR
I did not see or measure any pressure signs
It felt like the buffer was hitting the end pretty hard so I stopped.
Adjustable gas block????Heavierspring?????
I did shoot 47.6 in the bolt gun for a very slight gain, less than 5 fps compared the 47.4
I have the velocity at 2825 for my O3 A3
Very easy clean up

My next range test will be to test 175SMK on top of CFE 223@ 47.3
I am delighted with what I have but always looking for better

Tim
Shamblin,

Those are eye-opening revelations. There isn't much loss or gain in velocity in going from a 24" 1-10 twist to (1:12?) 26" barrel. Additionally, the small increase in muzzle velocity at 47.6 indicates that you are reaching the pressure limit anyway.

What was the powder charge that resulted in 2825ft/s in the 03A3? Could you have gone up in velocity w the -06?

For the poster who indicated that CFE223 is hard to come by, try looking for Alliant 2000MR. They are the same powder, made by St Marks down in Florida.

It would be nice to get real actual 30-06 data for this powder, but i understand it might be a little fast for this cartridge.

Send_It!

Last edited by Send_It; 02-05-2012 at 05:22 PM. Reason: grammar, unsure of twist for 26" rifle
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