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6.5 Creedmoor, Alternative powders?

Bluetip

Everybody knows that H4350, for the most part, is the go too powder.
Sometimes, and mostly due to high demand, its not avail.
I have experience with a few other powders, of which, I think may be good, but I'm new to the creed, and happy to be so.
What results, are folks getting from, XMR8208, and 100V. .
I've used them in similar cases, but wonder how they perform in the creed. Comments appreciated in advance.
Also, Varget.
 
My best groups have been with H100 V but you have to be cognizant of the temperature of which you will be shooting and adjust accordingly. I switched from H4350 to ReLoder-16 and get the same precision with better velocity using over 0.5gr less powder. I did not switch due to a shortage of H4350, I have near 20lbs, but due to testing out to 600yds comparing the two. In a 26" barrel with 141.5 Cauterucio's/ 140 Hybrids the RL-16 edged out the 4350 in small primer brass.
 
RL17 has proven itself on a long term basis for me in the 6.5 Creedmoor. One of these days I'll likely switch to RL16 for it though. I really like that powder as it seems to have some very wide, forgiving accuracy nodes. At least that is what I found with the 6 Creedmoor.
You, as suggested above, would also look at IMR4451.
I think I remember that, during the peak of the H4350 shortage, Hornady loaded factory ammo with 100V and it was not as good of ammo. No proof on my part; just what I've read.
8208XBR I would be very careful with. The extra volume of the 6.5 Creedmoor case and (My experience) the sudden pressure spikes that come with even small charge increases could lead to trouble. Again, my editorial comments and others may say I am totally FOS. ;)
 
DirtySteve said:
Against my better judgement I will say IMR4451.... I just don't want everyone to switch.
Click to expand...
I read an article in an NRA magazine, by Bryce Towsley, that 4451, is a viable option.
Temp stable, copper resistant, but he said that the manufacture recommended it as well. Groupings was good, sd, es, and speed, all good. Thanks for the feed back.
 
4451,varget, re 15, re 16, re 17, re26. Different powders for different weights of bullets, but I have not tested any of these powders that does not work in my cm and .260. Accuracy has been good with all of them and the only thing that is a consideration is the difference in velocity. My 6.5s are the easiest-to-load-for rifles that I have.
 
The only issue I had with IMR 4451 was in converted Lapua .308 Palma cases (smaller internal capacity than the LR converts and even more so than Hornady brass) was that due to the lower density of 4451 I could not get enough charge to push a 140gr beyond the upper 2600's in my 26" barrel......and it puffed muzzle smoke like a coal fired locomotive.
 
I've been using 4451 with 140 and 147 grain bullets. It seems to be capable, and both Hornady and Lapua 6.5CM brass have enough capacity to get 2780-ish out of 140gr bullets with it in a 24" Bartlein. That said, I got ahold of some H4350, and am able to drive the 147s faster with it - haven't tried it with 140s in my barrel, yet. I haven't gone past doing a velocity ladder and an initial OCW workup in load development there, yet, but it looks promising.

RL-26 gets nice velocity with the 147s for me, too.
 
Look at Speer reloading data . They have alliant 4000mr as one if the fastest for 140 grain. They also have some other alternative powders that I never thought of . Just Google Speer reloading data .
 
davexre said:
I've been using 4451 with 140 and 147 grain bullets. It seems to be capable, and both Hornady and Lapua 6.5CM brass have enough capacity to get 2780-ish out of 140gr bullets with it in a 24" Bartlein. That said, I got ahold of some H4350, and am able to drive the 147s faster with it - haven't tried it with 140s in my barrel, yet. I haven't gone past doing a velocity ladder and an initial OCW workup in load development there, yet, but it looks promising.

RL-26 gets nice velocity with the 147s for me, too.
Click to expand...

I tested re 26 under a 140 Interlock the other day and got super accuracy at 2889 fps.
 
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