Jump to content
Brian Enos's Forums... Maku mozo!

IMR8208XBR


rondog

Recommended Posts

Do any of y'all use the 8208xbr & have some load data you can share with me. 

Last weekend I shot 23 grns of 8208 over the chrono and got an average of 2556 fps, 5 shots, using hornady 55 grn fmjbt bullets.

Book says it should be in the low 3k range of fps.  

Rifle is a pof 18" barrel with 1/8 twist.  

Link to comment
Share on other sites

  • 3 weeks later...

I have not tried it with lighter bullets, but it does seem to really shine with heavy bullets in .223 near the top end of the load range. Using 23.5 with 77gr SMKs/Nosler CCs and 23.2 with 77gr TMK at 2.55". These are both above published .223 load data. 

 

YMMV and good luck.

Link to comment
Share on other sites

  • 7 months later...
3 minutes ago, chinny33 said:

is it cylindrical or spherical powder?

 

wondering how it would meter in a progressive loader

 

Extruded, but short cut. It meters very well for an extruded powder. 

Link to comment
Share on other sites

  • 3 weeks later...

I just started working on loads with this powder. 

IMR 8208XBR  23.5 grains

69gr Sierra TMK COL: 2.250”

2695 fps AVG 

 

16” Ballistic Advantage 223 wylde stainless barrel. 

 

This load shot good for me (.8” or .76MOA) but I plan on testing a bit furter as the SD was a little high and I think I can tighten it up a bit more 

C9042CF2-7E75-43D6-A6EE-6D1082A031B5.jpeg.0faa837f52e325c20939ca6bba0c6c68.jpeg

Link to comment
Share on other sites

15 hours ago, colsonkhc said:

I just started working on loads with this powder. 

IMR 8208XBR  23.5 grains

69gr Sierra TMK COL: 2.250”

2695 fps AVG 

 

16” Ballistic Advantage 223 wylde stainless barrel. 

 

This load shot good for me (.8” or .76MOA) but I plan on testing a bit furter as the SD was a little high and I think I can tighten it up a bit more 

C9042CF2-7E75-43D6-A6EE-6D1082A031B5.jpeg.0faa837f52e325c20939ca6bba0c6c68.jpeg

What did you use to generate that picture?

Link to comment
Share on other sites

On 3/1/2018 at 2:01 PM, Banacek said:

What did you use to generate that picture?

I used SubMOAPro on my Iphone.  Works pretty good.  Also for whatever reason that same load is now chronoing @ 2712FPS.  Not sure where in the increase came from other than the barrel is still fairly new and now has maybe 500 rounds through it VS the first time I chrono'd it only had 200-250.  

Link to comment
Share on other sites

  • 2 weeks later...

8208 just plain works for me, 223 and 6.5 grendel. 

18" WOA 1/7 twist  23.8 75 Hornady and 77 smk  ( this is over so work your own up)

20" r5 stoner 1/7 twist 23.4  both 75 and 77gr bullets 

55gr Hornady fmjbt 24.8 

I love the sightrom stac 4-20×50

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...