257 Roberts Powder Choice

[std7mag]

we live and fight behind enemy lines go easy on us

I feel your pain!
Living in the Comunist Wealth of Taxsylvania under Kim Jong Wolf.

Prepping for the upcoming 2nd shutdown.

 

[sandwarrior]

For heavies I use H4831 or IMR4831 (new stuff, haven't seen old in a long while) Or VV150-160.

For light bullets, I use H4895 and VV140, and 4350 (all flavors) for 100~ish gr. bullets. Start low and work up.

I've got a heavy barrel (Mauser custom) that likes hotter loads and a pencil barrel Ruger that doesn't like ANYTHING over mid-range.

Our old standby load is 41 gr. of 4895 with an 87 gr. anything bullet. Work up to that, it's on the warm side.

 

[308 5R]

From your list IMR-4350. I use it for anything >100 gr. H414 has worked well for me with a 75 gr V-Max groundhog load. I am interested to stoke up some partitions with some RL-17, but I’m waiting for some brass to come back online. My father and I have matching Rem 700 LA classics from ‘82-‘83 so I’m loaded out to a little north of 2.900”. There will always be a soft spot for this cartridge, many memories made as my first centerfire rifle.

S/F
Ryan

 

[Cemetery21]

I just decommisioned my last Roberts. I built it for my boy and he has thumped several deer with it. But, he is not good about picking up brass. I finally grew tired of trying to find more brass. I screwed on a 6.5 CM barrel and brass is everywhere.
Anyway, I was loading 760/H414 with light bullets. It grouped about 3/4" in a lightweight Shaw barrel and folded deer up on the spot.
I hated to retire it. It was the first centerfire caliber my boy shot and one of my alltime favorites. But, the deer don't seem to notice the difference.

 

[std7mag]

I just neck down 7X57 PPU brass.
Was cheap & available.

 

[lotech]

In a Kimber .257 Roberts, I've tried twelve bullets ranging in weight from 87 grains to 117 grains. I've tried at least six powders. For 100 - 117 grain bullets, H4350 and H4831 have been the best for me in terms of both accuracy and velocity. The Sierra 90 grain HP did very well with H4895.

 

[searcher]

In a Ruger ultra-light, using Remington cases and CCIBR2 primers:
100 Barnes TSX, 43.2 Hunter 2.780" oal Does .600" MOA in my pencil-barrel

 

[MagnumManiac]

My AI likes 760 with 100gr class, H4350 with 100gr class pills when 760 isn’t available.
All heavier weights like RE19, 4831 and RE22. Mine loves 117gr SMK’s with 4831, but I
Haven’t dusted mine off in years now.

Cheers.

 

[Scrumbag]

I am keen to try Ramshot Hunter with 120gr Speer BTSP, 100gr Hotcor and the 100gr Nosler E-tip

Scrummy

 

[centershot]

I am keen to try Ramshot Hunter with 120gr Speer BTSP, 100gr Hotcor and the 100gr Nosler E-tip

Scrummy

Went to Sportsmans Warehouse and held my breadth as I asked if they had Hunter. She came out with the last pound of it they had. My next powder to try in my A.I. Also have Speer 120 grain.

 

[long40shot]

You'd possibly imagine incorrectly, as the burn rates are not the same.
The H4350 may work well with up towards 90gr bullets.
The IMR 4350 would do well with the heavier bullets as the burn rate is slower.
And i see RL15 on your list.
I can understand wanting an accurate load. Believe me, i can.
But for a cartridge aimed at hunting, why not have an accurate load that's fast too?
Only increases your energy on game, and extends the distance the bullet will reliably expand.

Thank you for the condescending reply. I'd list my load data. But then you'd tell me how it can't be true and then cry to the Admin. Thanks again.

 

[Scrumbag]

Went to Sportsmans Warehouse and held my breadth as I asked if they had Hunter. She came out with the last pound of it they had. My next powder to try in my A.I. Also have Speer 120 grain.

Oh nice one. Please let us know how you get on. I have loaded some E-tips with N150 but it seems a very empty case and rather slow to me.

Scrummy

 

[sandwarrior]

Yup!
Only the duuudes in Commiefornia call it "Bob"...

They call it the "Bob" down in Texas too. Probably the state which has the most .257 Roberts popularity I've ever seen. I think there is an unwritten law you have to have one there.

 

[Evan]

4064 or 4350. One of those two has shot the smallest in every rifle I've ever tried them in. From 22-250 and 22BR all the way to 30-06.

I'd try 4064 first. 100gn SST over 38gns of 4064 was great in a friends win70 bob. There may have been some more room on top of that load, but I'd reduce and work up to it if I were trying it out in a new rifle.

If you're shooting the 117 and 120 class bullets, it's probably worth stepping over to 4350 but I have no experience there.

 

[Kevin Taylor]

4064. 117 gr spritzer.

 

[sandwarrior]

I just decommisioned my last Roberts. I built it for my boy and he has thumped several deer with it. But, he is not good about picking up brass. I finally grew tired of trying to find more brass. I screwed on a 6.5 CM barrel and brass is everywhere.
Anyway, I was loading 760/H414 with light bullets. It grouped about 3/4" in a lightweight Shaw barrel and folded deer up on the spot.
I hated to retire it. It was the first centerfire caliber my boy shot and one of my alltime favorites. But, the deer don't seem to notice the difference.

.257's are great things. However, I can certainly acknowledge if the family isn't willing to go their part (pick up brass) it makes it difficult to continue on that path.

FWIW, one day at the range and I'm shooting my 6.5 Creed. A couple locals are shooting one too. They commented how STOOOPUD it is to pick up brass and reload when you can get such awesome accuracy with Hornady ammo...

Reminds of the joke. There are 10 kinds of people. Those who understand binary and those who don't.

 

[Bowkill02]

90gr Sierra bthp and H-414 here!

 

[SweaterDood]

I’m running my own wildcat (Basically an AI version, kinda-sorta...) cartridge that uses the Bob (duuude from Alabama, here) case as the parent. My fireforming loads are a “book max” charge of H4350 and they shoot astonishingly well. There seem to be too many accounts of guys liking the 4350s, RL17 & 19, H100V, and a couple others I can’t remember. I personally haven’t tried RL17, but there is supposedly an out of character sweet spot with the Mauser case size. The burn rate reportedly matches particularly well for the Bob.

Chris

 

[std7mag]

I took my Ruger 77 MKII in 257 ROBERTS out for our opening day on Saturday.
Shot my first buck in 35 years of hunting.
Lots of does taken over the years!
100gr Nosler Ballistic Tip over a charge of Hybrid 100V.
Good placement on shot from 70 yards.
Lungs & heart came out in pieces.
Bullet punched through & kept going into a tree.
Even though i saw the good hit, coworker saw it start to run and shot at it with his 7mm-08. He clipped the back. Made a nasty looking wound, but not fatal.

Small rack! It is a 7 point. Let me legally tear off & fill out the buck tag portion on my hunting license.

 

[JEFFPPC]

4064