Alliant Reloder 7 for .308?


PDA






Blakenzy
April 17, 2013, 02:03 AM
Is Reloder 7 an adequate powder for .308Win loads? Thinking specifically about 150 gr FMJ and 165 gr cast... Seems to be very little recipes around for Reloder 7/.308 combination, just wondering if there are issues I should know about...

If you enjoyed reading about "Alliant Reloder 7 for .308?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
Blakenzy
April 17, 2013, 12:58 PM
*crickets*

Any opinions or comments welcome :)

How about general views on the powder itself?

Haxby
April 17, 2013, 01:16 PM
Haven't used it myself.
Burn rate is fast for a 308.
It'll work with the 150 gr bullet, but velocity won't be as high as with some slower powders.
Might be just right for cast lead.

jmr40
April 17, 2013, 01:24 PM
Alliant's website only shows it used with 100 gr bullets.

http://www.alliantpowder.com/reloaders/powderlist.aspx?type=1&powderid=7&cartridge=80

Why would you want to use this powder? There are many good 308 powder choices, this is not one of them.

kerreckt
April 17, 2013, 01:29 PM
I have loaded a 130gr. Speer HP with 40gr of RL7. About 2880fps. Accuracy was OK with my Savage 11 which is normally a tack driver. RL12 is a better choice,IMHO.

mtrmn
April 17, 2013, 02:27 PM
I used RL7 in 223 long ago and it is kinda on the fast side for 223, although it performed OK for me. I would think it would be too fast for 308, period. But I don't have access to my manuals at the moment.

Blakenzy
April 17, 2013, 05:15 PM
Yeah I know, better powders out there for .308, BUT....the place where I am living has very bad supply issues regarding anything 'for shooting'. Basically, you get to pay premium prices for regular stuff, if you are lucky enough to find some. It sucks. I did already buy a good powder designed for .308 Win, but they only had a pound worth and was then offered this R7 as well. I said I would think about it.

Haxby
April 17, 2013, 07:25 PM
R7 is listed for 308, 150 gr, in several of my old manuals, with velocities up to 2700 fps. It was Hercules Reloader 7 then.
You could call Alliant see what they say.

unknwn
April 17, 2013, 08:54 PM
I found it (Reloader7) listed in the Sierra 5th with thier under 170gr spitzers. Then I spent some time in the section marked "reloading for gas guns" and learned enough there that I would never use it in my M&P10.
I suspect that it'll stay on the shelf until I have some time to experiment with some 125gr. 30-30? loads maybe.
From what I could gather in that manual, it could work OK with .223 AR, but I'd look find someone who has already tried some before I loading it for my carbine.

nix4me
April 17, 2013, 09:04 PM
I use Reloader 7 for 30-30. Works great. I've done 125, 150 and 170gr bullets for the Model 94 and they all shoot great.

I use Reloader 17 for 300 Win Mag.

A Pause for the Coz
April 17, 2013, 10:50 PM
RL-7 works great in my 308, 30-30, 8mm Mauser, with cast bullets.
With Jacketed I would suspect it would work best with lighter bullets. 125gr range or so.

Havent tried it. I found it to be my go too powder for 300 Black out cast loads. So unless I have no other option, not using RL-7 for any thing else.

ArchAngelCD
April 18, 2013, 02:01 AM
The trouble with fast powder, large cases and heavy bullets is you can't generate proper velocities without exceeding the pressure limits. Also, fast powders don't fill the case enough. I have found powders that almost fill the case usually deliver better velocity than those that don't fill the case. (all IMO of course)

Blakenzy
April 19, 2013, 05:04 AM
In case anyone is interested I went the old fashioned way, used the phone and drove over to visit acquaintances who have manuals that I don’t. Lesson learned: I need to expand my reloading "library"

This is the info on Reloder 7 that I found so far for .308 Win
Lee 2nd ed.:
(110 gr jacketed) 41.2gr~3042fps (max 42.5gr)
(125 gr jacketed) 38.9gr~2838fps (max 40.0gr)
(150 gr jacketed) 36.1gr~2698fps (max 37.0gr~2750fps 46,900 CUP)

Alliant website:
(100 gr jacketed) 41.0gr~3003fps (no max listed)

Lyman 48th ed.:
(110 gr jacketed) 37.5gr~2898fps (max 42.0gr)
(125 gr jacketed) 35.0gr~2624fps (max 40.2gr)
(160 gr alloy #2) 25.0gr~1703fps (max 34.7gr~2346fps 34,700 PSI)
(170 gr alloy #2) 23.0gr~1870fps (max 41.5gr~2602fps 49,700 CUP)
(173 gr alloy #2) 27.5gr~1924fps (max 39.0)
(180 gr alloy #2) 28.0gr~1827fps (max 32.0)
(190 gr alloy #2) 25.0gr~1738fps (max 33.0)
(200 gr alloy #2) 22.0gr~1622fps (max 29.0)

This is the description from Lyman:
Reloder 7
The fastest of the Reloder series, suitable for a wide
range of cartridges from the 222 Remington to the 458
Winchester Magnum. It is perhaps the best choice for
the latter with 500-grain bullets as it takes up a minimum
of case space. It has a mix of red, yellow and
blue identifying granulations. Abbreviated as Rx7 in
our data.

and

308 Winchester
[…] The 308 Winchester also works well with cast bullets. Best
accuracy will usually occur in the velocity ranges of 1,600 to
2,000 feet per second. Cast bullet #311672, #311644, and
#311299 have proven popular with metallic silhouette shooters.
Reloder 7 and SR4759 will often give best results with
cast bullets.

Blakenzy
April 21, 2013, 02:18 AM
Can anyone confirm or deny that Reloder 7 no longer has colored granules in it due to manufacturing changes? I have juat read comments in a discussion on this and would like some guidance. Supposedly changes took place around 12 years ago... Lyman's 48th ed. is from 2002-2004...

Salmoneye
April 21, 2013, 09:54 AM
Alliant 2004 Manual:

http://glarp.atk.com/2004/2004Catalogs/2004AlliantPowderSM.pdf

.308 is on page 51, and shows 110, 125, and 150gr bullet loads with RL-7...

Blakenzy
April 21, 2013, 07:00 PM
For example, read this comment:
http://www.shootersforum.com/handloading-procedures-practices/46600-powder-burn-rate.html >>>go to post #5

Sorry Salmon, your link is giving me a 404-file not found error.

If you enjoyed reading about "Alliant Reloder 7 for .308?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!