Rx7...

Who makes this powder and is it still available...

(Reloder 7?)

What powder might it compare to as far as burning rate goes...

Thanks...BCB

If it's referring to Reloder 7, it's made by Alliant, and is still in production. I use it in my .375 Winchester.

Hope this helps.

Fred

Availability seems to be hit or miss although I just scored two pounds locally about a month ago.

It is not hard to find
Great for cast bullets
Lot of data in the Lyman Cast Manual

BCB

You can find that info in QL burn rate sheets,
pull up the powder see the info, in QL,
then check the BR sheets. :-)

I know you are not used to using those sheets.

HTH,

Tia,
Don

Many current manuals refer to it as RL 7.

Those powders do go by a couple different abbreviations in a few manuals, its confused me a couple times.

Alliant Reloder 7 - in the 4198/2015 range. Cleaner than many at lower pressures. Fine grained 'stick' powder - measures well. Excellent boolits powder in 32 Special, 35 Remington, 30-30, and 308. good in 223. Powder Valley has it. On the shelves in Sportsman Warehouse, Cheyenne, WY.

Please note: Alliant RL7 IS NOT Accurate 7 (Rx7): they have vastly different burning rates.

RX7 and RL7 are both used to describe Reloder 7 currently from Alliant and previously Hercules reloder 7.

as was RE7 for years

Reloader 7 is my favorite smokeless powder for 45-70 and 30-30.


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A lot of people spell it wrong too, RELODER;)

WHEN THEY FIRST MANUFACTURED IT THEY CALLED IT rx7, NOW IT'S CALLED rl 7, AT THE TIME THEY ALSO MADE rx 11 AND RX21 IF MEMORY SERVES ME RIGHT.

It has always been Reloder 7, Sierra used RE-7 for years then RX7, Hornady spelled it out, most manuals give a list of their abbreviations, that's all it is

Quote:

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Originally Posted by nvreloader

BCB

You can find that info in QL burn rate sheets,
pull up the powder see the info, in QL,
then check the BR sheets. :-)

I know you are not used to using those sheets.

HTH,

Tia,
Don

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N130…0.7350
N133…0.7350
296…0.7300
RX7…0.7250
2200…0.7170
BENCHMARK…0.6860

There are the Ba numbers for the powders that are around Reloder 7…

I am a bit surprised that 296 is so close to Reloder 7…

So, can I use 2200 and Benchmark with the same data as Reloder 7, at least the starting loads and then work up?...

I’m I interpreting the Ba numbers correctly?...

Thanks…BCB

Check Powder Valley website; they had it in stock recently.