QL Program and IMR 8208XBR load data for 6.5X47L

[GSSP]

Was able to run back out this morning and check out something that looked promising for accuracy and ES/SD.

Both the 32.5 gr groups (the first was the sighter load and then the next was within the ladder) ran .4 MOA'ish with low ES/SD. So, I loaded up 10 rounds each of 32.4/32.6 and 32.8 gr. I can't verify these exact weights because I "threw" my charges with my Harrell's Premium powder meter to see what sort of accuracy/numbers would present themselves. I was quite pleased.

Groups ran .36 to .69 MOA @ 360 yds SD's ran 5, 9 , 9 respectively. Something else. Velocity was a solid 70 fps slower when I dipped the bearing surface in some Sinclair's powdered graphite; 2530 vs 2600 ish.

So, again, not great velocity but very good accuracy, ES and SD's. Good enough to practice with.

Alan

PS,

Erik,

That's some impressive speeds with the R17!

 

[TX65]

Was out to doing some charge ladder testing with the 130 Berger VLD, IMR 8208 and Wolf SRM primers. This was in an 8.5 twist Krieger 30 inch barrel with a BAT M action - no ejector. Lapua brass was new out of box with no brass prep performed.

Lands + .010
COAL 2.770

33.5 grains 2739 fps
33.8 grains 2741 fps
34.1 grains 2764 fps
34.4 grains 2780 fps
34.7 grains 2795 fps
35.0 grains 2813 fps
35.3 grains 2833 fps
35.6 grains 2851 fps
35.9 grains 2880 fps
36.2 grains 2901 fps

Chronograph was an Oehler 35p with 3 screens on a 4 foot rail. Temp was 77 degrees with 79% humidity and altitude of 57 feet. SSE winds gusting to 29 mph.

For comparison, 38.2 of Varget ran 2956 fps

Disclaimer -

1. This data is provided for informational purposes only.

2. This data has not been tested in a SAAMI or CIP qualified pressure breech.

3. Any person using this data assumes complete and total responsibility for their own actions and safety.