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Posted: 1/21/2020 2:55:11 PM EDT
Looking at the data manuals, this powder seems to produce velocities considerably higher than anything else.

I've been using Varget in my 308 for a long time and it has been great but I am looking for more velocity to reach out as far as possible. Anyone used CFE 223 in a 308?
Link Posted: 1/21/2020 5:38:11 PM EDT
[#1]
Link Posted: 1/21/2020 8:29:51 PM EDT
[Last Edit: SilencerMan] [#2]
Savage Precision Carbine

208 AMAX over 42.5gr Varget for about 2450 fps.  I've had this rifle out to about 1200 yds so far.

Temperature sensitivity isn't really a concern.  Most of the time the temp will be around 20-25c when we are shooting.  What I do need is as much velocity out the muzzle as possible to sling those big bullets as far as they will go.  I am even going to build another rifle specifically for this project.  It will be a custom 25" heavy barrelled Rem 700 with a minimum dimension match chamber.  I've already got all the components, just need to find some time to chamber the barrel and get everything together.

If CFE 223 can give me another 75-100 fps then that is worthwhile to me.  I'll adjust around any other issues.
Link Posted: 1/22/2020 11:17:29 AM EDT
[#3]
If you dont care about temp sensitivity why not reloder 17?
Link Posted: 1/22/2020 2:46:40 PM EDT
[#4]
The data manuals show CFE 223 produces the highest velocities.
Link Posted: 1/22/2020 6:52:19 PM EDT
[#5]
Velocity takes second fiddle to accuracy!  Accuracy and consistency trump velocity
Link Posted: 1/22/2020 8:55:05 PM EDT
[#6]
Not for extreme long range it doesn't .... within reason of course.  I can work with a 1.5 -2.0 moa load but a super accurate bullet that goes transonic and tumbles at 1200 yds will NEVER make it to 1400 yds.  Its simple physics.  I need the bullet to stay supersonic as far as possible.

Half an moa in accuracy is nada compared to the effects of wind and a dozen other environmental and other factors over the span of 1400 yds.  Simple aiming errors will be many times more significant than the basic accuracy of the load at 100 yds.

This isn't my first kick at this can.  Years ago I took a "stock" 243 Win out to 2000yds.
Link Posted: 1/24/2020 4:51:44 PM EDT
[#7]
That is your view point.  To each their own.
Me I take Consistency and 100/75 FPS more is not not going to make that big of difference.  This allows for reliable and repeatable dope!
Link Posted: 1/24/2020 6:44:52 PM EDT
[#8]
I'm a varmint shooter now, hitting crows or chucks at 400 yards is a different game than 1,200 yard shooting but I've done enough of that. I'm on the side of decent groups but hyper velocity.

For example my 223 for crows and chucks will shoot 2.5" at 300 yards with 55 grain varmint projectiles @ 3,100 FPS, slightest wind bounces them around. When the wind kicks up that can spread to 3.5" to 4", gusts to 35 to 50 MPH hurt you hunting.

I went with a custom load, Malaysian military brass gets me 2 grain more powder,  a 40 grain moly coated varmint projectile now at 3,900 FPS reduces time in flight, 1.1/8" @ 300 yards spread to 2" in the wind.

Real windy days I'm on a 6mm Remington with 75 grain moly projectiles, @ 3,900 FPS, 1. 1/16" 300 yards and stable up to 50 MPH winds.

Reduced time of flight, long range work many years ago I tested to 300 Kong!
Link Posted: 1/25/2020 8:48:20 PM EDT
[#9]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DMilisock:
I'm a varmint shooter now, hitting crows or chucks at 400 yards is a different game than 1,200 yard shooting but I've done enough of that. I'm on the side of decent groups but hyper velocity.

For example my 223 for crows and chucks will shoot 2.5" at 300 yards with 55 grain varmint projectiles @ 3,100 FPS, slightest wind bounces them around. When the wind kicks up that can spread to 3.5" to 4", gusts to 35 to 50 MPH hurt you hunting.

I went with a custom load, Malaysian military brass gets me 2 grain more powder,  a 40 grain moly coated varmint projectile now at 3,900 FPS reduces time in flight, 1.1/8" @ 300 yards spread to 2" in the wind.

Real windy days I'm on a 6mm Remington with 75 grain moly projectiles, @ 3,900 FPS, 1. 1/16" 300 yards and stable up to 50 MPH winds.

Reduced time of flight, long range work many years ago I tested to 300 Kong!
View Quote
Agreed.  This is the point I was trying to make.

I have also done the varmint thing, where accuracy is king.  I have a 6BR that is extremely accurate and that I never chase velocity with.  Extreme long range shooting is a totally different thing, where velocity matters much more than accuracy.
Link Posted: 1/25/2020 9:02:26 PM EDT
[Last Edit: rippr334] [#10]
I run it under a 150gr FMJ. Between 48 and 49gr. Not sure on OAL. This is from a 16" barrel AR.
Link Posted: 1/28/2020 11:48:51 AM EDT
[#11]
42.0 grains with a 168 grain ELD-M Hornady bullet. 2500 FPS from a 24" barrel. Any higher in charge weight and I get pressure signs.
Link Posted: 1/28/2020 4:58:51 PM EDT
[#12]
Link Posted: 1/28/2020 5:33:59 PM EDT
[#13]
I'm with you on velocity, reduced time of flight beats minuscule improvements in accuracy. The longer the range and the more complex the environment the more velocity is important.
Link Posted: 1/29/2020 8:44:35 PM EDT
[#14]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DMilisock:
I'm with you on velocity, reduced time of flight beats minuscule improvements in accuracy. The longer the range and the more complex the environment the more velocity is important.
View Quote
Use the quote button, or identify who you're replying to.
Link Posted: 2/20/2020 4:44:35 PM EDT
[Last Edit: Michael0317] [#15]
@Dmilisock

That is a blueprinted Remington 700 action and 24” 5 R barrel. I used Remington brass to test the powder out. I think case volume may be the issue. I am going to try it in Starline brass very soon.
Link Posted: 2/21/2020 5:04:15 PM EDT
[#16]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Michael0317:
@Dmilisock

That is a blueprinted Remington 700 action and 24” 5 R barrel. I used Remington brass to test the powder out. I think case volume may be the issue. I am going to try it in Starline brass very soon.
View Quote
Spend your money on Lapua or Winchester or Peterson brass.
Link Posted: 2/23/2020 12:25:58 AM EDT
[Last Edit: HighpowerRifleBrony] [#17]
0.020" off lands. 55gr case. 44.7-45.5gr powder is occasionally sticky. SDs got better with higher charges - low teens. In the future, backing off to 44.5gr and tuning with jump may be better. ETA: I was more concerned with elevation spread.

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