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Discussion Starter · #1 ·
Does any one use reloader 7 with the 425 grain pile driver jr. in .45-70 /.457 WW magnum guide gun? I've load data for H322 but have a lot of reloader 7 and would like some starting data.
 

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I have not used R7 but in the 4th edition of Lyman's Cast Bullet handbook they have two lots, neither for lever action 45-70 but I will give them to you.
1. 1873 Springfield 45-70 using Lyman 405gr. Loaded to 2.550" OAL.
Starting load 37grs. gives 1534fps. @ 16400 CUP to 39 grs. gives 1578fps. @17900 CUP.
2. RUGER NO.1 and RUGER NO.3 (ONLY) 45-70 using Lyman 405gr. Loaded to 2.550" OAL.
Starting load 46grs. gives 1785fps. @ 23600 CUP to 51grs. gives 1996fps. @36800 CUP. AGAIN NOT FOR LEVER ACTION 45-70.

There is no listing of R7 in the Lever Actions for 405gr. only for 350gr.
Let us know if you need that too.
Hope this helps.
 

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Futher to above. There was NO LISTING for 425gr. Piledrivers. These were from a 405gr. as stated. This was as close as I could find. It may be used as a guildline but you would have to load slightly LOWER possibly about 10% Lower and work up watching for pressure signs.
 

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I used RE-7 very successfully with the 400 Speer and 405 gr Remington jacketed bullets. Have never seen data for it with the 425 Piledriver, but I'd bet a phone call to Alliant would get you started in the right direction. Good powder and if you've got a good supply of it I understand the desire to use it. I'd call 'em!

Beartooth though - highly recommends that good ol' H322 and I tell you, I was seriously impressed with the accuracy and velocity I saw running H322 and the 425 Piledriver Jr. bullets... Very good combination!

Regards, Guy
 

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BLUEDODGEMAN DO NOT USE THE ABOVE LOADING INFO.
MY MISTAKE THE LOADING IS FOR RX7.
I am sorry about that I was looking at the WRONG powder.
 

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I was just rechecking those loads I posted does anyone here know if Reloader 7 is the same as what Lyman call RX7?
When I was checking burning comparison rates there was no listing for RX7, maybe that is why I automatically went to Lyman"s calling of RX7, any help would be great.
I just want to sure everything is safe and correct.
 

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Worth checking, but I think we're all okay. I've seen Reloader 7 abbreviated as Rx7, RE7, RL7 and probably some other variations.

Guy
 

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In the Lyman References I have, they refer to "Reloader 7" as "RX7" so you should be good to go. No worries. Like Guy, I have seen it listed as Reloader 7, Reloder 7, Re-7, Rx7, and RL-7.
 

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I do. Winchester cases, Fed 210pr, (43 gr of R7 and the 425 PDJ). I am going to try out some of the PD Lites (350) over Alliant 2400, gonna start at 26 and go up until I get around 1650-1750 w/best accuracy.
 

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Hi Guys,
I contacted the "Guru of Powder" PapaJohn and he told me that it is all the same powder descriptions in regards to Reloader 7 being called other names such as Rx7, RE7 and RL 7.
So ALL IS GOOD, go ahead with what I put on the site.
 

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Discussion Starter · #11 ·
Thanks everyone, it's warming up in Alaska and I have a chronograph on the way so it's time to be at the reloading bench ;D
 

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I found the reloder 7 kicks like a mule in my 45/70 with any bullet weight over 400 grs. I use Varget and H4198 with better results and less shoulder kick.
 

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I shot some Ranch Dog 425s today with his max load of 42.3gr RL7.
Shot very well. Am going to load up some more today! :)
 

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Discussion Starter · #14 ·
I've been working with the 525 gr. pile drivers. Need to get back to the 425 load as well. I do like how those 525 smack targets.
 

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Discussion Starter · #16 ·
I've started with 40 grains of rl7 and got 1530 fps loading in the .457 wildwest magnum brass. The recoil was mild and no pressure signs at all. I've loaded up 5 rounds with 41 grains but the range was full yesterday so I haven't chronographed them yet. I've read that some are getting too much pressure with 40 grains in the .45-70. In the .457 ww it seemed very mild. A 525 grain pile driver at 1530 fps should penetrate anything in front of it I would think.
 
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