RL33 vs LRT

[ARlife4me]

I've aquired some LRT for testing and have thought about RL33 also. Have anyone used these in 264wm, 300wm and/or 338lm? I do have QL, but need real world numbers if possible? LRT might not be usable in 264wm? I have retumbo, magpro, 7977, h1000, 7828 and RL25. I might try 8133 since QL has been updated with the July 2021 date. Time and availability will tell. Maybe? Anyone have experience with any or all of these powders?

 

[jimbires]

I run RL33 in my 338 lapua , with 300 grain bergers . 30"bbl . I couldn't find RL33 , but I recently bought a jug of VV N570 . N570 is a couple less grains for the same velocity , it's also a little less case fill . I think it will work out well . before I found N570, I bought a jug of RL50 . RL50 is going to need more grains for the same velocity , and a compressed load . it'll probably get pushed to the back of the shelf . a guy I shoot with uses H1000 in his 338 Lapua

H1000 , I use in my 7mm mashburn , it works well . I was using it in my 300 wby .
IMR7828ssc , I use in my 300 wby . I also use it in a 243 with 100 gr bullets .

 

[ARlife4me]

I have a 1 pounder of n570 also I forget to mention.

 

[martinakl]

I ran LRT in a 300WM with 230 Berger's out of a 24" barrel. Seems to get them moving rather quickly (zero pressure signs). This is just one trip to the range. I wasn't shooting for groups, just pressure tests. I'll revisit next spring/summer to see if I can get good SD, ES, and accuracy out of it. Decent start. I was messing with all kinds of powders and bullets as I broke the barrel in. It's now time to get serious.

300 Win 230 Berger Hybrid OTM Ramshot LRT - Data

Sako S20 24" Barrel ~3.59" COAL Peterson 300 Win Mag "Long" brass (virgin) Fed 215M primers Ramshot LRT powder No published data out there. Ramshot had load data for 300 PRC, so I started there. Shot today, 9/26/2021

www.longrangehunting.com

 

[Tank308]

I like 33 in my 264. Norma brass charge weights in the low 70's depending on bullet choice. Used Retumbo before it ran out. Haven't tried lrt

 

[amu_shooter]

+1 on the RL33 /.264. I'm using 74.5 with the 156 EOL/210M primers/WW Brass with excellent results.

 

[jrock]

Tagging in. I shoot a 338 NM and am interested in LRT since it appears to be the only slow powder in stock short of 50 BMG. I have some Reloader 50 I was thinking of trying, since I'm down to my last lb of 8133. I'm not sure I have the case capacity to use it. In my gun, powders slower than H1000 work better for the 300 grainers. Would like to shoot the 300s some more but I need fuel!

 

[whirlwindjml]

I love LRT in my 26 nosler with 156 bergers.
I load .264 win mag with h1000 and 142 ablr.
The LRT will work best with the heavier pills and longer barrels...

 

[ARlife4me]

I love LRT in my 26 nosler with 156 bergers.
I load .264 win mag with h1000 and 142 ablr.
The LRT will work best with the heavier pills and longer barrels...

I was noticing that on QL it just keeps speeding up!

 

[whirlwindjml]

I'm at like 3218fps on the 156 bergers and I could have went hotter but the sd didn't agree. I'm over the max load and safe.

I'm glad I found it because the 26 is a barrel burner and the LRT burns cooler and it's a ball powder so the throat should last better.

I'd try it in a 264 but retumbo and h1000 are surly proven

 

[jrock]

I talked to Berger about the 156s in the 6.5x300 Weatherby and there where many 50 bmg powders on the list. That is why I have some Reloader 50 but was only getting 3100 fps before pressure signs started to show up on the brass. Probably could have pushed it more but Berger's data was about 3050 fps max.