Rx7. reloder 7

[grampa243]

just wondering of anyone uses or has used reloder 7 for cast boolit loads.

i see it listed in the lyman book for a few calibers.

[curator]

Rx7 is good stuff for cast boolit shooting. It really shines in .45-70 and .308 Win. It is my 'go-to" powder with 280 grain slugs in my .35 Whelen AI for velocity and accuracy

[JonB_in_Glencoe]

YEP, a few days ago I loaded some 222 test loads with Rx7.
it's been to cold to test them yet.

[imashooter2]

.35 Remington and .30/30 here. Just bought another jug last October.

[rodok]

Like it in my 300 blackout

[ubetcha]

Being that SR4759 is being discontinued, I'm thinking about switching to RL7 for use in my 14" T/C 30-30 with a RCBS 165gr sil.I use 18.5gr of 4759 and it shoots great. That 's my load for IHMSA silhouettes. Any recommendations for a decent start load with RL7?

[TXGunNut]

35 Rem, 375 Win, and 45-70 Govt really shine with this powder using my boolits and guns. It's not my go-to powder but maybe it should be, I keep winding up there. I even loaded up some rounds with it for my 32-20.

[Jack Stanley]

When I used to shoot a .308 from the bench Reloder seven was my favorite powder . Sorry to say I haven't tried it in very many other cartridges except for my woodchuck rifle with sierra soft points .

Jack

[imashooter2]

Being that SR4759 is being discontinued, I'm thinking about switching to RL7 for use in my 14" T/C 30-30 with a RCBS 165gr sil.I use 18.5gr of 4759 and it shoots great. That 's my load for IHMSA silhouettes. Any recommendations for a decent start load with RL7?

Alliant lists 23.5 grains as maximum under a 170 grain Remington Corelokt in their silhouette section. I'd have no problem starting 21 grains under the RCBS boolit. FYI, they claim the 23.5 load at 1,800 fps from a 14" barrel.

ETA: The RCBS Cast Bullet Manual lists 24.0 start and 26.0 maximum for the 308-165-SIL in the pistol section. The current Lyman Cast Bullet Handbook lists even higher maximums for similar boolits. Looks like the Alliant data is very conservative.

[WALLNUTT]

My favorite propellant. I use it all of my 30cal. It's a little slower than 2400 but lights as good.

[marshall623]

I never shot any R7, but I use SR 4759 in all my bottle neck cast rounds , is R7 bulky like 4759 ? I like the way 4759 fills the case, I've been pondering on trying some R7 myself.

[imashooter2]

RL7 is a short cut extruded powder. Not especially bulky.

[Clay M]

Rel 7 is probably my favorite powder for cast bullets in the .45/70,.405 win,and the .38/55 win.

[Shuz]

Reloder 7 is my favorite powder for cast boolits in the .250 Sav. and the .444 Marlin. Meters very well in my old Dillon 450.

[marshall623]

RL7 is a short cut extruded powder. Not especially bulky.

Thanks that's what I was looking , I'm not the OP but thanks for this thread & replies - all good info . A silly wet shooter from Md. he uses RL7 in his XP 7BR with cast, he told me it was good stuff he said it wasn't temp. sensitive either . I might have to get a bottle .

[s mac]

My Lyman manual also lists RX 7 in load data,I can't decipher who the manufacture is.

[TXGunNut]

My Lyman manual also lists RX 7 in load data,I can't decipher who the manufacture is.

Alliant

[DLCTEX]

Good in 222 to 45-70 for me. I don't recall if I tried it in 22 Hornet, but wouldn't be surprised if it works good there.

[Jal5]

Testing it for .233 /556 needs some more work up now that the weather has cleared up.

[35 shooter]

I've been meaning to try it for reduced loads in the 35 whelen. Guess i need to pick some up now that 4759 is being discontinued.