6.5 Creedmoor shooters

[Bowfishn]

I plan on checking velocity again this time in leaving them cold record temp and vel. and again in the summer when it's hot out starting with 46 gr. 3 shots working up comparing vel. changes so I can tell if it has any sudden changes and stop before a problem. I have a feeling that my method I used to begin with will be fairly close to summer temps 70-80 deg.
Of coarse it does occasionally get up to 90 - 100 deg here and I will have to approach that with caution as well.
There is a thread RL26 where a bunch have been testing it in various calibers that shows the temp sensitivity is cartridge specific.

There is an article at:
New, Advanced Alliant Powders: Reloder 23 and Reloder 26 « Daily Bulletin
it says that Federal has been using it quite a bit in their ammo.

Berger shows a load they tested with their 135 gr Classic Hunter with RL26 and RL17

http://www.bergerbullets.com/pdf/6.5-Creedmoor-135gr.pdf

and a load with RL17 with 140 gr Elite Hunter

http://www.bergerbullets.com/pdf/6.5-Creedmoor.pdf

so it has been tested by bullet manufactures in 6.5 creedmoor and ammo makers in other Cartridges.

 

[Bowfishn]

Interesting thing is my QL program shows the Berger 49.8 gr load of RL26 with 135 gr Classic Hunter with their info of 2.80 COL , 105% fill and 24" barrel as 2974 fps almost dead nuts to Bergers Vel. of 2977 fps.

The same with the 140 gr and the RL17 QL shows it within 5 fps of Berger vel.

 

[Barrelnut]

All good info and thanks for the links.

 

[jasonco]

My first tests were in late January and temps 32f and dropping. Second testing was February in 32F-36F. Third test was this past weekend temperatures in the low 60's @ 0900 to 72F early afternoon. Velocities stayed pretty much stable.

 

[bigbulls]

Tagging on. Like those RL26 numbers

 

[pjogrinc]

haven't been able to find H4350 so ended up going with RL16. More temp stable than 15 or 17.
Been getting single digit SDs with most loads, unreal, 5 and 6 SD numbers.
New 6.5 CM Nosler brass, 139 Scenar, F210, 2.777 OAL, ~0.017 off lands.
41.0 2776 AVG, no sd, bats crapped out.
41.3 2800, 5.8 SD
41.6 2818, 8.9 SD
41.9 2837, 12.4 SD
42.2 2861, 6.6 SD
42.5 2871, 6.4 SD
42.8 2893, 5.7 SD
43.1 2912, 6.8 SD
43.3 2932, 11.0 SD

 

[bigbulls]

what length barrel are you running?

 

[pjogrinc]

24 inch 1:8 twist Spencer in the MPA.

My gun has always shot fast. Nosler Match 140s box says 2550, out of mine I get 2687 AVG.

 

[marioq]

Tagging in

 

[aebhunter]

Tikka CTRx 20" Barrel
44.0 Grains RL16
CCI 200 primer
140 grain berger hybrid
Nosler Brass
2.250 base to ogive
2755 fps over a magnetospeed
es of 9

Love the RL16. Shot it in below zero temps and up around 70 degrees, seems to be temp stable. I will say it takes me a few more strokes with the bore brush to clean my gun though....

 

[Wethide]

Tagging in

 

[Lpart]

Tagging in

 

[Wethide]

Ar-10 24 inch rock creek
RE 26 46.5 gr
Fed 210 primer
Hornady Brass
2.82 COAL
147 ELDM
2775 fps
Accuracy on par with bergers

 

[Rich Coyle]

Sounds Reasonable for 43gr of RL17 with a 26" Barrel.

With 48.5gr of RL26 I was able to get 5 shot average of 3006 with a Nosler 140 RDF, Nosler brass and BR2 out of my 6.5 Creed.
26" XCaliber Barrel 1-8 checked with Magnetospeed.
I am going to try a drop tube and see if 49gr of RL26 will work.
Of coarse I still have to see if I can get them to shoot well at that speed or as someone else stated they will just miss the target faster.

Next to my loading area I have a foot vibrator mounted on the wall. When I have a large for case load I leave the funnel on the case with the powder already in the case and touch it to the vibrator. It's like a vacuum inside the case.