Home Forums Reloading Big Game Rifles .257 Roberts fav's

Hunting bud uses RL16 & a 117 Interlock in a basic bob.

You are using the EXACT same bullet/powder/charge that I'm using in my Ruger 77 257 Roberts! I'm getting 3037 fps average out of the 22" factory barreled "1976" Ruger 77 tanger.

Forming R-P 7x57 Mauser brass using .257 Roberts die. Using primer pocket uniform tool and titanium trimmer to uniform length while I'm at it. (Dummy chambers just fine.)

Very nice, SC. Can you tell us the MV you were getting, an a little about the rifle? thanks

Nothing special as a rifle, except it's a favourite. I've been getting 3000fps with that load. Never not worked.

The late Bevan King in BC made and installed the bbl. 22" MR contour into a 700 long action in a TI take-off stock opened up to BDL.



Originally bedded into a walnut MR stock. This little buck looked around a corner with his mouth open and caught it in the back of his throat. DRT.

Thanks. Got a bunch of 100 Hornady’s. May try ‘em with IMR4831!

My Ruger 77RL Bob is shooting 110 ABs pushed by 43 grains of R16 into 3/4".

Have not put thru the chrony, but seems quite adequate and brass holding up well.
Did some loading bench interpolation to come up with that load. Not a lot of data on that.

Also interested in seeing what the de-coppering agent in R16 does for the bore.

Tim

Typical Loony, I swapped the Ti take off, BDL conversion for a Rem factory stock....

I know, I know, maybe not too smart. But, the factory stock has a lower comb and I can use low LW Talley rings. I painted it according to JPro's thread, didn't do as good a job as he does, think I applied too much webbing. Anyway, it doesn't shoot the 100 TTSX/H-100V load as well, but I did shoot sub inch 120 NPT over MRP. It's slower than the TTSX load, like around 2,800, but I do like Partitions.

The hollow butt stock sounded like a drum when thumped, so I left a rag in there to muffle that racket. Works pretty well.

I may sell the Ti take off stock.

DF

I own the following

(2) Kimber Select Classic - 257 Roberts
(1) Nosler Professional - 257 Roberts
(1) Winchester Custom built by Roger Ferrel
(1) Dakota model 97 - 257 Roberts Ack Imp

What I’ve found is that all of my rifles love a 115gr Nosler BT and H4350 powder. I also use a 110 AB if there is any chance that an elk might come into play.

Just hard to beat a 257 Bob!

I'd BDL the TI take-off. I did exactly that with my 257R and 22-250 faux TIs and like it better than any tupperware offering.

Just sayin'.

I wouldn't do that. A buddy of mine reloads commercially, particularly for rifles he's built for customers. One day I was complaining about accubonds blowing up. He asked .. 110 grain .25 caliber? Yep. He said that is the only Accubond that he has had any complaints about from his customers and there have been quite a few. I've set my 110 grain accubonds aside for coyotes. My .257 shoots 120 grain partitions for game. Honest truth is I would try the 115 grain ballistic tips before I'd use the 110 grain Accubond again, and possibly/maybe even the 100 grain ballistic tip. The results were that bad with the AB. Then again I have my expectations about what a bullet should do, others' mileage probably varies.

Tom

tagging this thread for good data.

[img]https://i.imgur.com/tGzNCOG.jpg?1[/img]

[img]https://i.imgur.com/RXJ2Wu6.jpg?1[/img]

The 100 gr. TTSX is the one bullet answer for big game for the 257 Rbts if your rifle shoots it accurately with respectable velocity

Prepping to load for a new "Bob" and I notice the Hornady 9th manual list Superformance as highest velocity with 100 gr. bullets 3200 fps. Anyone tried Superformance? That's treading on H-100V velocities

Hmmm... I bought a bottle o' Superperformance a while back, & it's just been languishing on the shelf. I'll have to give that a whirl.

And until I saw your post, I was actually thinking about trying some reduced loads for that rifle. I'll probably be working up loads with H4895 at the same time.

FC

FYI...The manual list 49.7 as max load in case you do not have the book

FYI...The manual list 49.7 as max load in case you do not have the book

Thanks. Hornady's 10th also shows 49.7 for the 100 grain Interlock. It's my understanding that the TTSX's I have on-hand have less bearing surface, so I oughta be OK at that powder level.

As always, though, I'll work up to it.

FC

FYI: The new Speer Manual, (Number 15), has some pretty extensive load data for the 257 Roberts. It's the +P data too, not the old lower pressure data.

Great thread with great info. I just prepped up 100 brass cases last night to get my wife's rifle shooting straight. It's a Ruger 77 MKii and I've had some trouble getting good groups from it. I"m determined to get it shooting however. Being here in CA I have to use non-lead, so I"ve got a box of 100 gr TTSX and another box of 90 GMX.