Apologize I found a thread started couple months ago talking about this.. Who here has tried IMR 8133 or 7977 in the 26-06 with 120gr bullets..

I haven't used either of those 2 newer IMR powders, but with bullets up to 110 gr, RL-19 has always been my mainstay.

For 115's -120's, RL-22/MRP has been excellent.

I probably should work up new loads with the newer powders, but I've got lots of '19 & '22 & they work just fine, so I'm not going to change until I run out of what I have.

The gain is not worth the effort for me; if starting over or new, yeah, I'd probably use something different today.

MM

https://www.24hourcampfire.com/ubbt.../13999213/imr-8133-in-25-06#Post13999213

I tried it. Hit pressure in my rifle well before max velocity per IMR. May have been my brass. I kind of recapped my experience in the thread link above.

I went back to RL-22, which has worked well for me with 120 gr partitions.

I really don't want to mess with rl22 due to its velocity swings from cold to warm or vice versa.

Not quite as bad as some make it out to be, depending on the temps you do your load work at & the extremes you might use it in.

Obviously, if you work up a load at very hot or very cold temps, & then hunt or shoot in the opposite extreme, there could be issues, but I've never seen an issue that amounted to much.

Loads worked up at 50'ish degrees, hunt in 10 degrees..................colder than that & I don't want to be hunting much.

MM

Started using Retumbo in the 25-06 for the 115's about ten years ago. It's worked out real well. Accurate & good velocity.

Guy

It is VERY tough to beat H4831 in the 25-06 (or 270) with bullets on the heavy end of the spectrum.

And H4831 is on the shelf in every little shop I have recently checked.

If I use 4831 I will use the IMR version. I think I will give imr 4831 and imr 4350 a go.

I use IMR 4350, hard to try something new when the old powder works so well

Second this. I've been using IMR 4350 with 120gr bullets (Sierra HPBT, now discontinued) in my .25-06 since forever. This is one of the first loads I ever developed when I started re-loading and haven't found a reason to change it. The same load works in both my Winchester M70 and my son's Remington 700.

Neither of those powders is particularly temp stable.

But the Hodgdon versions of them are.

MM

Somehow, shooters got along for many decades using powders which were “temperature sensitive”. The introduction of “extreme” powders was a smart marketing ploy by Hodgdon for its lines of propellants (Hodgdon, IMR and WW). I’m not saying that such powders are not a good idea, but to eschew any other powders just because they don’t say “temperature insensitive” on the label is overly limiting, IMO anyway.

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I've been using RL22 for years in various 25.06's with excellent results and it's no doubt my go to powder for this caliber. We don't have big temp swings here in this part of NC so I've personally never experienced the temp sensitive issues with RL22 that I hear people talk about, i'm not saying it doesn't exist but I've never had any problems with it here. RL22 has been very consistent and accurate in every 25.06 that I've used it in and is the first powder I recommend when asked about reloading the 25.06. Mike

I used IMR 7828 with 120 grain Nosler Partitions in a .25/06. IIRC the velocity was 3030 fps from a 24" barrel. I do not remember the powder charge though.

This is my experience as well. That’s been how I do it since 86.



Again this is my experience as well, but it may exist and it might not as I haven’t found that problem. My personal preference is Norma MRP when it’s around but RL22 works just as well in all bullet weights from 110-120. Seems somebody on here going by MD up in the gun writers section has said many times that temp sensitivity or lack of such depends a lot on the cartridge/bullet combination as well as the powder. It just may be that 22 and MRP in the 25.06 is one such combination.

Tried 3 different bullets with imr 4350. They were 120gr nosler solid base 120 gr Speer btsp and 120 Sierra bthp. It shot the 120 Sierra's the best. Bought some 117 Sierra btsp to try them, because bullet still being made.

Might use this 25-06 for sheep hunting

Yep.

The H versions of these is where it's at.