IMR-8208 XBR loads with .223/AR-15

[Tactical30]

I cant seem to find any load data with this powder. I hear it looks like Hodgdon Benchrest but exhibits a slower burn rate, i.e., more like Varget. It sounds like it would work well with the smaller rounds such as .204 Ruger, .223 Rem, .22-250 and maybe 6mm PPC. Benchmark and Varget both work well for me and I would really like to try this powder out but I have no load data.

Anyone care to share or know of any load data with this powder with the .223 round in an AR Platform?

Has anyone had any experience with this powder and the .223?

I wonder if It would work with the 6.5 Grendel.

Ideas, comments?

 

[mavrick10_2000]

Re: IMR-8208 XBR loads with .223/AR-15

The burn rate is slightly faster than 4895.

Hodgdon's site has load data for the Grendel and my XBR and brass will be showing up today for me to do some Grendel loads. I'll provide some limited feedback on some Grendel loads as soon as I can. Won't have any Chrony data as my tripod is broken.

I haven't looked for .223 loads for XBR, but it's hard to believe they have Grendel data and no .223 data posted.

 

[DoSqH]

Re: IMR-8208 XBR loads with .223/AR-15

There is a bunch of load data for that powder at:

http://data.hodgdon.com

36 GR. BAR VG FB IMR IMR 8208 XBR .224" 2.200" 25.4 3548 44,500 PSI 27.0C 3728 50,600 PSI
40 GR. NOS BT IMR IMR 8208 XBR .224" 2.280" 25.0 3433 41,500 PSI 26.7C 3659 50,400 PSI
45 GR. SIE SP IMR IMR 8208 XBR .224" 2.240" 24.5 3287 41,700 PSI 26.8 3550 52,000 PSI
50 GR. SPR SP IMR IMR 8208 XBR .224" 2.210" 23.5 3111 40,500 PSI 25.8 3407 53,300 PSI
53 GR. SIE HP IMR IMR 8208 XBR .224" 2.200" 23.0 3032 41,400 PSI 25.4 3310 53,400 PSI
55 GR. SPR SP IMR IMR 8208 XBR .224" 2.200" 23.0 3024 42,100 PSI 25.3 3268 53,100 PSI
60 GR. HDY V-MAX IMR IMR 8208 XBR .224" 2.250" 21.5 2857 43,500 PSI 23.6 3057 51,700 PSI
63 GR. SIE SP IMR IMR 8208 XBR .224" 2.200" 21.0 2783 43,000 PSI 23.1 2995 52,400 PSI
69 GR. SIE HPBT IMR IMR 8208 XBR .224" 2.235" 21.0 2696 42,200 PSI 23.8 2959 52,900 PSI
70 GR. SPR SP IMR IMR 8208 XBR .224" 2.140" 20.0 2621 44,100 PSI 21.8 2797 52,800 PSI
75 GR. JLK VLD IMR IMR 8208 XBR .224" 2.250" 20.0 2538 40,800 PSI 22.7 2804 53,900 PSI
77 GR. SIE HPBT IMR IMR 8208 XBR .224" 2.260" 20.5 2535 41,800 PSI 22.8 2766 53,700 PSI
80 GR. SIE MK IMR IMR 8208 XBR .224" 2.550" 19.0 2456 44,400 PSI 21.0 2628 52,900 PSI
90 GR. SIE HPBT IMR IMR 8208 XBR .224" 2.380" 18.0 2270 45,600 PSI 19.6 2419 52,800 PSI

 

[dan46n2]

Re: IMR-8208 XBR loads with .223/AR-15

I just ordered 8 lbs from Midsouthshooters @$135, not a bad price. I'll be loading it in .223 for my AR and will post results when I get them.

 

[Bongos]

Re: IMR-8208 XBR loads with .223/AR-15

any input yet on XBR and 223, I did find info for 75gr, what I am interested in is for the 55gr FMJ. Any input is appreciated

 

[Split26]

Re: IMR-8208 XBR loads with .223/AR-15

Looking for info about the 75 gr. Hornady A max. Tips get F'd up when 24.5 gr. of Varget is added. Compressed load, but there has to be a trick to it! Any info would be great, Thanks

US ARMY

 

[Seawalker]

Re: IMR-8208 XBR loads with .223/AR-15

Have not shot any 55 fmj with XBR, but have shot some 55 v-max. Am getting about 3,135fps with 24.8g and average about .6 groups. So far not as accurate as Varget and can't get quite as good a velocity. Seems like the loads Hodgdon is showing on their website are pretty conservative. No sign of pressure with any loads including 60vmax, 69 Nosler HPBT, and 75 Hornady HPBT.

Split26, are you trying to seat the 75 AMax at mag length? Don't believe you can seat them at mag length for an AR. You'll have to single load and seat longer.

 

[Split26]

Re: IMR-8208 XBR loads with .223/AR-15

Thanks, i decided to go with the 77 gr. Sierra HPBT- Match! Thanks

 

[Bongos]

Re: IMR-8208 XBR loads with .223/AR-15

Thanks for the info, just trying to see if 55gr will cruise about 3000fps and do well with potential. Will invest in a 8lb jugs.
Thanks again!

 

[btyeung]

Re: IMR-8208 XBR loads with .223/AR-15

Thanks I'll check out the suggestions