Needing help with using IMR 8208 XBR in my .243 Winchester

W

weneedtoo

New member
Can't seem to find much load info for IMR 8208 XBR powder. Looking for loads for .243 Winchester, using 85gr/100gr jacketed bullets. Thanks in advance for any suggestions. I have nearly 15lbs of 8208, so I really need to use some of it.
 
First off I think using a 100 gr in 243 wastes most of the potential of a 243.

That said IMR 8208 XBR Is for smaller bullets, like a 55gr. It will make a rocket, 4000 fps.
In my 6mm Remington, I get over 4200 fps.
Try Superformance and an 80 or 85 gr bullet and look out...
 
Originally Posted By: jetman[size:14pt]First off I think using a 100 gr in 243 wastes most of the potential of a 243.

Never heard this before. I've shot lots of 243s....
 
IMHO, it depends upon what you are planning to hunt with the rifle. I've never been a fan of barrel burners, just color me cheap, I guess. The lighter bullets at golly-gosh velocities are impressive, but no warts on the heavier bullets and they are still effective at somewhat lower velocities while getting a lot more mileage out of my barrels. I used a 243 WSSM w/87 gr. Hornady HP's at less than maximum velocities and the coyotes never knew the difference. !00 gr. Nosler partitions hammered the deer and hogs w/great authority, and I'm sure my barrel had less indigestion in the process.
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Regards,
hm
 
8208 is a great temp insensitive powder - for certain loads.
I use it for light bullets per cartridge, but not heavy.
For 243 that would be 50-60 gr.
For 6.5cm that would be 60-80 gr.
For 308 that would be 110 gr.

For heavy 243 pills I'd use a slower burning powder like Varget, H4350 or H100V.
 
Should be no problem to sell 5-10 lbs of it, then buy a more appropriate powder for the heavier bullets.

The bullets velocity does not wear out a barrel- large charges of slow burning powders do.
 
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