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Joined: Sep 2002
Posts: 3,324
Campfire Tracker
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OP
Campfire Tracker
Joined: Sep 2002
Posts: 3,324 |
There has been lots of discussion lately about the .257 so I thought I would start one concerned with only the 115-120 gr. bullets. I know most use the 100 gr bullets and I do too. But I do like the way the 115 gr Partitions work on big hogs not the little “grillers” as I call them. My best load for accuracy has been with RL 22 but Ramshot Magnum worked well too. What powders especially the slower ones have you guys had the best success with in the 115-120 Gr. bullets.
PASS IT ON!
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Joined: Apr 2003
Posts: 6,825
Campfire Tracker
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Campfire Tracker
Joined: Apr 2003
Posts: 6,825 |
I have several, and in general, have had better luck with H4331sc for 120's. For me, a good 120gr at 2900ish is a sweet spot considering terminal performance, trajectory, recoil, and accuracy.
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Joined: Oct 2002
Posts: 96,121
Campfire Oracle
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Campfire Oracle
Joined: Oct 2002
Posts: 96,121 |
Magnum for me as well with 120 NP.
"Dear Lord, save me from Your followers"
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Joined: Dec 2006
Posts: 5,907
Campfire Tracker
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Campfire Tracker
Joined: Dec 2006
Posts: 5,907 |
H4831 for me with the 115NBT and 120 NPT
When I die I hope I don't start voting democrat.
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Joined: Dec 2009
Posts: 10,653
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2009
Posts: 10,653 |
115 gr NP H4831 in two Ruger 77s, one is a LT.
H4350 in another 77. All 22" barrels
You're Welcome At My Fire Anytime
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Joined: Mar 2004
Posts: 2,622
Campfire Regular
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Campfire Regular
Joined: Mar 2004
Posts: 2,622 |
H4350 with one of mine with 117’s, 42.5 gr gets me 2750 for a mild, yet very accurate load. With the 115 partition, 120 Speer, and 110 accubond, IMR 4831 has been very accurate, with good velocity in +P loads.
Old70
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Joined: Feb 2004
Posts: 1,827
Campfire Regular
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Campfire Regular
Joined: Feb 2004
Posts: 1,827 |
I am using 115 gr. Nosler Partitions and 43.5 grs. IMR 4351. About 2900 fps. from my Kimber Montana and get one inch five shot groups. All round load for everything up to 300 yard elk.
Boring...
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Joined: Jul 2011
Posts: 1,792
Campfire Regular
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Campfire Regular
Joined: Jul 2011
Posts: 1,792 |
RL26,RL23, Norma MRP, IMR7828SSC, RL17. The first three are my favorite. RL26 gives the highest velocities with the least pressure.
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Joined: Nov 2007
Posts: 29,616
Campfire Ranger
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Campfire Ranger
Joined: Nov 2007
Posts: 29,616 |
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Joined: Feb 2003
Posts: 8,833
Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2003
Posts: 8,833 |
My 257 really likes Ramshot Hunter under a 115 NPT. Perks them at 2950.
Adversity doesn't build character, it reveals it.
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Joined: Mar 2011
Posts: 1,863
Campfire Regular
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Campfire Regular
Joined: Mar 2011
Posts: 1,863 |
43.5 grains RL 19 w 115 ballistic tips 43 grains RL 19 w 117 btsp interlocks
These should only be running 2800's but have no problems with deer out to 370 yrds, and both loads are very accurate in my m77.
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Joined: Oct 2007
Posts: 411
Campfire Member
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Campfire Member
Joined: Oct 2007
Posts: 411 |
I have used both IMR 4831 and Big Game with 120 NP.
I got better accuracy with the IMR 4831, but only by a tiny bit.
I now use Big Game all the time, because it meters through my powder measure so much better. It just makes reloading easier.
Patrick
"If there are no dogs in Heaven, then when I die, I want to go where they went." Will Rogers
And on the 8th day, God created the Border Collie.
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Joined: Jun 2016
Posts: 403
Campfire Member
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Campfire Member
Joined: Jun 2016
Posts: 403 |
RL22, RL25, Retumbo, H4831 have all worked well for me with bullets ranging from 110grs to 120grs. RL22 has been my go to powder for years with the 117gr-120gr bullets. This combination has been accurate and consistent with good velocity.
Life's Tough, God's Good, Pray Hard!
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Joined: Aug 2005
Posts: 3,711
Campfire Tracker
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Campfire Tracker
Joined: Aug 2005
Posts: 3,711 |
I am another one who found IMR4831 to be good with 120 grain bullets. This goes back into the 1980's, I don't have more recent experience.
Jim
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Joined: Dec 2004
Posts: 17,230
Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,230 |
I am another one who found IMR4831 to be good with 120 grain bullets. This goes back into the 1980's, I don't have more recent experience.
Jim Same here.
Now with even more aplomb
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Joined: Oct 2008
Posts: 7,263
Campfire Tracker
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Campfire Tracker
Joined: Oct 2008
Posts: 7,263 |
RL26,RL23, Norma MRP, IMR7828SSC, RL17. The first three are my favorite. RL26 gives the highest velocities with the least pressure.
Haven't tried them in the Roberts but impressed with what they do in .243, 6mm AI, 25-06, 6.5x55, 270 win. especially R26.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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Joined: Jan 2014
Posts: 3,241
Campfire Tracker
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Campfire Tracker
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I had very good luck with superformance and Hornady 117 RN in my Montana.
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Joined: Nov 2007
Posts: 8,448
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2007
Posts: 8,448 |
Funny, puzzling thing. I'm on my 5th, I think, .257 Roberts. I'd expect the heavier the bullet, the slower the powder. I've had the best luck the most often with 100s and H4831, and I got my best accuracy with the 110s with RL22, but instead of something slower yet, I've gotten the best accuracy out of 120 grain bullets with 43 grains of H414 and magnum primers. No point in fighting with what wants to work. Tom
Anyone who thinks there's two sides to everything hasn't met a M�bius strip.
Here be dragons ...
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Joined: Jul 2011
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Campfire Regular
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Campfire Regular
Joined: Jul 2011
Posts: 1,792 |
Superformance works in my 257 Roberts and my 270 win with 140gr bullets.
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