Post load data for CFE223 and 120 grain projectiles

[HuntTXhogs]

Target goal is 2590 - 2620 FPS

Came in 50 -80 FPS under the goal

Temp : 65 degrees , 57% humidity , wind 10-15 mph from 5 0’clock

Powder : CFE223 Primer : CCi 450 : Brass - brand new Hornady

Started with 29.9 grains : 2439/2453/2433 FPS

1E5D949E-4124-4480-8B3D-FC033BFFBAAD.jpeg

30.2 grains : 2494/2483/2440/2440/2459 FPS

5D66CCB9-6CFF-4F80-A493-698B680FBE8D.jpeg

30.7 grains : 2498/2473/2494/2475 FPS

6E435C87-E4B1-43AE-932D-BCC09527B760.jpeg

31.2 grains : 2484/2513/2501/2504/2509 FPS

54C2CB14-1E4E-4424-9ADE-983B9C660D4B.jpeg

31.5 grains : 2558/2541/2524/2533/2533 FPS

37A7BD18-20F8-4C0D-99E8-6D840DBD0919.jpeg

Brass has swipes from the ejector

[Clarence]

Only one group, but it looks like some of the earlier loads show more promise, and your comment about brass swipes suggest caution with the top load...

You'll probably never see the difference in practical field performance from the last 40-50 fps. Don't know which barrel you have, but your goal looks on the high side... and probably too high when the temperature gets up in the 90's.

Clarence

[muvef]

What length barrel?

[HuntTXhogs]

18" barrel

29.9 grain brass

CFE 29.9 resized.jpg

30.2 grain brass

CFE 30.2 resized.jpg

30.7 grain brass

CFE 30.7 resized.jpg

31.2 grain brass

CFE 31.2 resized.jpg

31.5 grain brass

CFE 31.5 resized.jpg

[StoneHendge]

18" barrel

This is the 6.5 Grendel forum, not the 6.5 Creedmoor forum.........

I push 120 Scenars L's at 2520 out of my 18" Satern/Stoner with 30.6 grains of CFE and GM205MAR and that load frankly makes me pause since it is an average speed barrel. I wouldn't use that load of I wasn't trying to shoot the barrel out.

[HuntTXhogs]

I don’t plan to go any higher than what I loaded and shot today - I have a 6.5 Creedmoor for faster and heavier loads.

This was simply a test of a bullet / Powder / primer combo shooting for a lofty goal - didn’t make it and that’s okay - I have a 6.5 Creedmoor to satisfy the faster or heavier 6.5mm thirst for speed.

[Sticks]

Try .2 gr increments. You probably passed a velocity node somewhere in the upper 2400s to low 2500s.

30.7 - 31.2

[BluntForceTrauma]

HTXH, thanks for data! Appreciate all the little photos that go with the data.

[NightFisher]

This is the 6.5 Grendel forum, not the 6.5 Creedmoor forum.........

No, if this was the Creedmoor forum we would already be talking about neck tension and thousand dollar scales that measure down to the nearest particle of powder...

[outbreaker]

No, if this was the Creedmoor forum we would already be talking about neck tension and thousand dollar scales that measure down to the nearest particle of powder...

You forgot about molecular density and controlling for ambient humidity of the powder, case, bullet as well as taking the moon position into account for gravitational fluctuations.

[Mad Charlie]

You forgot about molecular density and controlling for ambient humidity of the powder, case, bullet as well as taking the moon position into account for gravitational fluctuations.

And Coriolis effect, and primer weight, and bright sunbeams and cosmic rays, moonbeams and spiderwebs...

[Kswhitetails]

And Coriolis effect, and primer weight, and bright sunbeams and cosmic rays, moonbeams and spiderwebs...

Lol. HEEYYYY YOUUUUU GUYEEEEES!

[sneaky one]

outbreaker- you forgot about the temp. of your dies while loading, it can change the neck tension. No joke


Hunt TX- you are running a tic hot. The speeds you want are good in 24' tube. An 18 " tube should be about 2500-2540. And that is up there... I usually saw 2460-2480

Which bullet ?

[HuntTXhogs]

outbreaker- you forgot about the temp. of your dies while loading, it can change the neck tension. No joke


Hunt TX- you are running a tic hot. The speeds you want are good in 24' tube. An 18 " tube should be about 2500-2540. And that is up there... I usually saw 2460-2480

Which bullet ?

Hi Sneaky -

120 grain Sierra Pro Hunter , soft point flat base bullet.

I decided against loading anymore of these, info posted for the benefit of the Horde.

Next bullet trials attempting for 2520 FPS will be done with powders other than CFE223 based on performance yielded on this test.

Thanks and good seeing you pop in here

[sneaky one]

Good to see you on here also. Been a while..

The Sierra was the first choice when I started loading for the Grrr, awesome accuracy. Find the accuracy node on these , on game performance stays the same .

Check, Tac, BLC-2, and AR comp.

Did you ever try the bullets I sent a while back?