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Which seem to be the powders producing the highest velocities with these lighter bullets?  Load swap shows RE-7. My books like 4895 and 2400 and 4198. Comments?
 

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Everything I've read has suggested that RE-7 is the powder for the lighter weight bullets, outside plinking loads.  I'm using 52 grains of RE-7 with a 350 grain slug.
I've not tried any other powders since this one worked so well and I've got bunches of it.
Jim
 

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IMR 4198 at 48.5 grains gives almost 2100 fps, not a max load.  My Hornady manual shows 4198 gives higher velocity than RE-7.  Unfortunantly hornandy's 300 grain bullets are designed for less than 2000 fps so they don't list Ruger No 1 loads.  I'd like to work up an obnoxious 300 grain load for pumkin exploding and varmit shooting.  How high can one go in a No. 1  with RE-7 or 4198?
 

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The Lyman #47 manual shows 63 gr Reloader #7 with a 300 gr bullet as a max. I use 60gr with a 300gr Rem for groundhogs out of a #3Ruger.  It's capable of groups less the .5 with this loading. Never tried anymore powder  when this one works so nice.
 

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With the Standard disclaimer- these are safe in mine, don't know about yours:
Browning 1885; Sierra 300 gr HP- 2.625 OAL:
57.5 gr. IMR-3031=1890 fps, 16.0 SD.
55 gr. H-4198 = 2050 fps, 18.9 SD.
48 gr 4198 gives same velocity as 3031 load but SD goes to *&^&&#36#^.
This shoots pretty good out to 400 yds.
 

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Charlie with what bullet are you only getting 2050 fps with 55 grains of 4198?  Must be a 350 or heavier bullet.  I was refereing to the 300 grain HP
 

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THE 2 BEST 45/70 POWDERS ARE RE 7 AND H 322. H322 FOR 400 GR AND UP, RE 7 HAS THE EDGE WITH LIGHT 300 GR. BULLETS, TOSS A COIN FOR 350 GRAINERS.
 

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My favorite powder for the 300 grain 45/70 loads is reloader #7.I use 52 grains in the marlin 1895's and 60 grains in a Ruger#1.I have went as high as 63 grains in the Ruger,but the best accuracy was using a charge between 59 and 60.5 grains.
 
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