Reloder 26

[74bronco]

Anyone got the burn temp of r26 yet ? It makes great velocity yes, but if it has a high burn temp I'm going to limit it to hunting loads only in my 6 slr to save barrel life, 48gr r26 drives a 115 vldh right at 3200 with no pressure signs in my 27" krieger 7.5 twist.

 

[Creedmoor shooter]

Did some load testing over the chrono last night. 70.5 grains of rl-26 yielded 3152 average with a es of 20 with a 162 Hornady bthp match. Plan on switching to the 162 eld-match when I get a decent load developed with the bthp. That's only 3 rounds because that's all I brought of that load. Very happy with that velocity. This is out of my factory Browning x-bolt eclipse Hunter with a 26in barrel.

 

[Engineering101]

74bronco

The heat of explosion for RL-26 is 3,905 kJ/kg. By way of comparison H4831SC is 3,870 so there is not a world of difference. (Info from Quick Load)

 

[74bronco]

74bronco

The heat of explosion for RL-26 is 3,905 kJ/kg. By way of comparison H4831SC is 3,870 so there is not a world of difference. (Info from Quick Load)

Thank You sir, not the coolest powder but not horrid either, ill stick with n165,h1000, v100h for target and r26 for killing.

 

[tbrice23]

74bronco

The heat of explosion for RL-26 is 3,905 kJ/kg. By way of comparison H4831SC is 3,870 so there is not a world of difference. (Info from Quick Load)

Would the Heat of Explosion vary with load density or case design at a given temp
or remain contant at a given temp?

 

[Engineering101]

tbrice23

The heat of explosion is one of the numbers that indicates how much energy you can get out of the powder per unit weight. That is a feature of the powder and doesn't change once the lot of powder is manufactured though it might vary some from lot to lot. Of course you also have to look at powder density (how much weight of powder fits in a give space) and other stuff to really understand a powder. I'm not a powder expert so if you really want to get into this I'd call up one of the major vendors and talk to their tech staff.

 

[tbrice23]

10-4

 

[8andbait]

I have tried it in several different cartridges and it is just a little faster than H1000 and a little slower than H4831SC from my experience.

 

[therifleman556]

I'm starting to try RL26 in my 7mm rem mag , it also looks good in my 300wby . I use quickload too . just use caution with quickload and RL26 powder . in my 7 rem mag after I adjusted the water case capacity and the COAL I thought my max charge would be 73.8 gr at 3146FPS . I fired one round loaded at 72.2 quickload calls it at 3080fps , my labradar says 3251 . I thought it must have been a fluke so I fired another loaded at 72.4gr quickload calls for 3088fps , labradar 3261FPS . I'm figuring my loads are about 4.2 gr to high . I pulled them apart and down loaded them . I haven't got back out to shoot these new ones so I can't say how the velocity matches up . this is the first time I ran into a problem like this using quickload , I don't think I goofed up .

This is my first post so forgive my ignorance if I missed anything.
What was your overall length? I tried this stuff today with the 162 ELD-M in my factory 700 LR. OAL is 3.465 about .005 off the rifling. My starting load of 69.0 gave 2990. I worked up to 71.5 and was surprised to see 3208 with SD of 18 using 250 primers and Hornady brass. This seemed hot at first but Aliant's data shows 3060 with 69.0 at a much shorter OAL from a 24" barrel so maybe there's more room to work. The three test rounds at 71.5 gave no ejector marks, no flat primers, no sticky bolt lift, and a half inch group. So far I really like this stuff

 

[jimbires]

This is my first post so forgive my ignorance if I missed anything.
What was your overall length? I tried this stuff today with the 162 ELD-M in my factory 700 LR. OAL is 3.465 about .005 off the rifling. My starting load of 69.0 gave 2990. I worked up to 71.5 and was surprised to see 3208 with SD of 18 using 250 primers and Hornady brass. This seemed hot at first but Aliant's data shows 3060 with 69.0 at a much shorter OAL from a 24" barrel so maybe there's more room to work. The three test rounds at 71.5 gave no ejector marks, no flat primers, no sticky bolt lift, and a half inch group. So far I really like this stuff

I'm usin the old flat base Hornady innerlock 154 gr sp bullets #2830 . my COAL off the tip is 3.347 , this gives me a .020 jump . I started using WW brass that has a case capacity of 85.6 gr . quickload has the 7mm rem mag rated at 61,000 psi max . quickload shows this bullet maxing out at 3150 FPS at 61,000 psi . I entered all the data into quickload it shows 73.8 gr would give 3146 fps at max psi . I loaded a ladder from 72.2 up to 73.8 grains .

grain ................ q load est ..................... labradar
73.8 .....................3146
73.2......................3121
72.6 .....................3096
72.4 .....................3088............................3261
72.2......................3080 ...........................3251

according to quickload I need 76.4 gr to get 3251 FPS


I'm running out of time , I'll post more later .

 

[jimbires]

( part 2 )

the info in my above post I was using WW brass that was about at it's end of life . I bought some Nosler brass and fired it one time to get it expanded . new brass always has a slower FPS than fired brass for me . so this info below will be for the one time fired nosler brass . I started at 69.6 and went up by .2 gr up to 71.8 , I just put a few of them here so you guys can follow along .



case capacity of 87.11 gr
COAL 3.347 ( gives a .020 jump )

grains .............. Q load estimate ........... labradar
74.5..................3145
71.8 .................3034...............................3162
71.6..................3026...............................3167
71.4..................3018...............................3141
71.0..................3000...............................3132
70.6..................2985...............................3134
70.2..................2968...............................3098
69.6..................2943...............................3076

here is a link to alliant powder . I looked at a few recipes , they seem to be a little light on the powder charge for the given velocity .

Alliant Powder - Reloader's Guide

just start low and work up .pay attention and use your chrony .

hope this helps , Jim

 

[therifleman556]

( part 2 )
hope this helps , Jim

It does. First, it means for my amount of shooting QL wouldn't be much help. Is it typical to be off by 150fps?

It seems Alliant's data is a bit conservative. I rechecked my brass, took a good look at the primers, and mic'd the heads above the belts and there's no discernable difference between the starting load @ 2990 and my current max yielding 3200. If I can tweak a load to shoot well at 3100-3150 and be somewhat easy on brass I can just load up and shoot without worrying about further experimentation.

Okay that last part probably isn't true.

 

[Jud96]

I have to say this powder is like magic! I have never used anything like it before. I use it in my custom .308 Norma with 208gr ELDs, Bertram brass, and Fed 215s. I used RL23 and IMR 7828 before and couldn't get the velocity, accuracy, and lower ES that I was looking for. I picked up a pound of RL26 just to try and it really surprised me. I worked up from 66 grains, which was max with RL23, and stopped at 71 gr because this load shoots in the .3s goes 2960fps and has an ES of 17. My primers never changed from 66 up to 71 grains, they are still round and I have no ejector mark or anything. I could go up at least another grain but I am happy with where I'm at now.

I have yet to test temp stability, but from what I've been hearing its suppose to be pretty good. Looking forward to testing RL26 in my .270 and my .243 with 100s.

 

[Wedgy]

I have to say this powder is like magic! I have never used anything like it before. I use it in my custom .308 Norma with 208gr ELDs, Bertram brass, and Fed 215s. I used RL23 and IMR 7828 before and couldn't get the velocity, accuracy, and lower ES that I was looking for. I picked up a pound of RL26 just to try and it really surprised me. I worked up from 66 grains, which was max with RL23, and stopped at 71 gr because this load shoots in the .3s goes 2960fps and has an ES of 17. My primers never changed from 66 up to 71 grains, they are still round and I have no ejector mark or anything. I could go up at least another grain but I am happy with where I'm at now.

I have yet to test temp stability, but from what I've been hearing its suppose to be pretty good. Looking forward to testing RL26 in my .270 and my .243 with 100s.

Stability is great until you get around the lower mid eighties, read this thread;

http://www.longrangehunting.com/forums/f28/temperature-sensitivity-alliant-reloder-26-a-187256/