N565/570 a legitimate RL26 replacement?

[philcox]

I am wondering with the essential absence of RL26 from the scene for years (sure an occasional appearance), would N565 or N570 be essentially a legitimate replacement? If not, what makes RL26 that much different? Seems the the N5** powders are much more readily available. (You should be able to tell by the question, I have very little powder knowledge, so seeking to understand).

 

[TaperPin]

It’s my understanding N570 and RL26 get their good reputation from being a double base powder with good power to volume ratio. I’ve read a lot of guys using both for 300 mags and whatnot, with similar results. What are you shooting it in?

 

[philcox]

It’s my understanding N570 and RL26 get their good reputation from being a double base powder with good power to volume ratio. I’ve read a lot of guys using both for 300 mags and whatnot, with similar results. What are you shooting it in?

Right now, just my 7PRC, but I see RL26 listed ALL OVER THE PLACE as a good powder ... 6.5, 300WM, seems to be almost universal. I never noticed that before.

 

[TaperPin]

I wonder when rl26 will be back on the shelves - probably after the war in Ukraine is over.

 

[Kimber7man]

N560 is awesome in 6.5 PRC
Trying N565 in my 7 PRC soon...

 

[philcox]

N560 is awesome in 6.5 PRC
Trying N565 in my 7 PRC soon...

What projectile you shooting in the 7PRC?

 

[A382DWDZQ]

Just from QuickLoad, but in terms of velocity, pressure and case fill, R26 gets the highest velocity for the lowest pressure & case fill by a pretty significant margin on a wide range of cartridges.

 

[oilman87]

I use n570 in my 300WM and 7PRC. I’ve never gotten to try RL26 because it’s impossible to find but n570 gives me more velocity than retumbo and h1000

 

[philcox]

Just from QuickLoad, but in terms of velocity, pressure and case fill, R26 gets the highest velocity for the lowest pressure & case fill by a pretty significant margin on a wide range of cartridges.

Well, there you go. That answers my question ... "Nope, might get lucky, but data suggest there is a material difference" ... Thanks.

 

[Article 4]

RL26 has been unobtanium for quite some time however the Vhit powders are seen more frequently.
7 PRC should run in the 565 to 568 burn rate pretty well and give plenty of velocity. 570 is going be a lower burn rate and tends to be very fast but pressure and throat erosion can be an issue.
I run 568 in my 7/300 PRC with 180 grain Bergers and the burn rate matches well with the bigger bullet.

 

[wind gypsy]

I wouldn't expect RL26 velocity with N565 but the loss in velocity might be offset with temp stability and cost of powder.

 

[kevingm1987]

I will in Canada and it has been even more challenging to get any of the high demand RL powders for quite some time. A local Ma and Pa dealer that I get a fair amount of my components from, mentioned not to expect anything from the RL line up till at least after the US election. Still didn't sound fairly confident though.

 

[Flyjunky]

I’ve tried both rl26 and N565 in my 6.5-284 and 300. I usually see about a ~2gr difference between the powders to get the same velocity. I still use 26 for my 30cals but I’m using 565 in my 6.5. N565 is a great powder, dispenses very consistent as well.

 

[Kimber7man]

What projectile you shooting in the 7PRC?

175 elite hunter

 

[Bleeb]

I've run N565 in my 7 PRC with 175gr Nosler ABLRs. The first rounds I used Fed 215 primers, and now I'm going to try Rem 9 1/2M primers. After that, WLR primers. I'm just waiting on new scope rings before I do further load development.

Out of my Proof Research 22" barrel, 69.7gr N565 gave me an average of 2925fps @ 10' from the muzzle (corrected to 2938fps at muzzle) with the Fed 215 primer. Accuracy was about 1/2", and I am not quite at max pressure. Most importantly for consistencey to me, the load density is 98.2% with 100% powder burn, and single digit ES.

I chose N565 over N570 due to my 22" barrel length. To achieve max pressure and velocity, I'd have a compressed load with N570 and maybe not get a complete burn. N560 would be a good choice as well, but with less fill and probably a bit less velocity than N565.

 

[GoatPackr]

I'd try the 570 first. It's easier to find and better temp stability. Both great powders but 26 can get squirrely fast with heat. My experience is it will cause less barrel heat and more smoke. 570 can heat up a barrel really fast especially in a big magnum. But in a hunting situation I'm ok with that since it is better for extreme temp swings.

Kris

 

[philcox]

I'd try the 570 first. It's easier to find and better temp stability. Both great powders but 26 can get squirrely fast with heat. My experience is it will cause less barrel heat and more smoke. 570 can heat up a barrel really fast especially in a big magnum. But in a hunting situation I'm ok with that since it is better for extreme temp swings.

Kris

570 better temp stability that 565 or RL26? Seems that 565 would maybe not give the velocity, but with the 168 LRX might be a better fit. I can get both.

Also wonder if 570 or 565 would be a good substitute for RL23 and the 175 LRX in my 300WM

 

[Flyjunky]

I'd try the 570 first. It's easier to find and better temp stability. Both great powders but 26 can get squirrely fast with heat. My experience is it will cause less barrel heat and more smoke. 570 can heat up a barrel really fast especially in a big magnum. But in a hunting situation I'm ok with that since it is better for extreme temp swings.

Kris

People have talked about the temp sensitivity of 26 but I haven’t noticed it. From temps 20-86 my guns seem to shoot the same. My 300 is at max charge and that’s where I’d expect to see a temp stability issue but I’ve yet to see one. I always use a chronograph when shooting…Ignorance is bliss I guess.