Home Forums Hunting & Shooting Deer Hunting Deer load for .257 Roberts.............

I have some 100 gr. Nosler bullets and I am looking for a good deer load using these bullets. Suggestions welcomed, I have some IMR 4064 and RL-15 anyone load these bullets with these powders?

39 gr 4064 with 100 gr bullet. Mild report and recoil,good accuracy,velocity about 2900 fps (IIRC).

Got the load from JOC years ago via letter. Shot lots of it.

Nope.

I'm on my 5th .257. RL15 and IMR 4064 are best reserved for 75 grain varmint bullets. I've had best luck with 100 grain bullets with H4831. If it didn't work I'd look at H414 or Win 760, one of the 4350s, or RL19.

Tom

Those propellants can and will work but something slower is ideal.

Alliant nor Nosler list a load for a 100 gr in the Bob, but I did get good accuracy from RL-15 & 100s in my Better Bob, while velocity was lower than w/ slower powders. Didn't check on Hodgdon's site for 4064.

I use IMR-4350 & RS-Hunter w/ great results in mine.

Hodgdon's site is where I'd start for 4064 data.

Winchester/Olin cases filled with 42 grains of H4895 using a drop tube is a combination that has worked well in all of the Marlin, Mauser, Remington, Ruger, and Savage 257 Roberts rifles that I have used it in.

Did you really mean 4895?

If so, why was a drop tube needed for the charge you cited?

100 grain BTs and 45.5 grains of IMR4831 works well in my M48.

I'd investigate charges in the mid to upper thirties with 4064.

4064 is certainly not the powder for top end loads for the Roberts. If you want to push 100 gr bullets in excess of 3000 fps there are better,slower powders for the task.

But 4064 and powders in that range of burn rate work well for somewhat reduced loads with 100 gr bullets, will show good accuracy,and killing power is still right there.

Many may not be aware because we associate JOC with the 270 and H4831 but the truth is that most of his early years shooting and hunting everything from moose and grizzly to Coues deer, was not done with H4831,but with 4064.

The same was true of the 257 Roberts which his wife and kids used as well.

If the OP has a stash of 4064 and Rl15 that he wants to use for some target or casual work,no reason why not....it will work just fine for that purpose, even if it isn't "optimum" for the cartridge.

37.0 grains of IMR4895 and your fave 100 grain bullet....

That, too.

I know you already have the 100 gr bullets but if you run across them ,try the 110 gr accubonds! I have been tickled with them in 3 different 25 cal deer guns! v best winpoor

38gr of IMR4895,100gr Sierra Pro Hunter,Fed 210 primer,in Rem brass gave a 10sht avg of 2962fps at 15' out of a 22"bbl Ruger M77.

I'm currently loading test rounds for 100, 115 and 117 gr., which will include Ramshot Hunter and Norma MRP loads.

I see mixed reports on Hybrid 100V and Superperformance. Velocity data looks good, but there may be some accuracy issues based on what I've read. Anyone tried these?

DF

I read that the 110 NAB was made more for .25-06 velocities rather than .257R speeds. I have not tried them, so can't comment. Any info will be helpful.

DF

Here's what MD has said on numerous occasions on the 'fire:

"I generally stick to IMR4350 or H4350 in the Bob, about 46-47 grains with 100-grain bullets and 43-44 with 115-120's. Have generally found that if the 4350's will not shoot with .25-caliber big game bullets, there is either something wrong with the bullets or the rifle."

46.0 of IMR4350 works for me with a 100gr NBT.

I tried Hybrid 100V in my previous .257. The potential velocity looked attractive. Accuracy wasn't "there." With H4831 it'd shoot in the .2s for 5 shots with 100 grain ballistic tips. With Hybrid 100V it was more like 2 MOA. Somewhere along the way I managed to burn up a pound of the stuff trying this or that in various guns but I don't really see any need to buy more now that it's gone.

Tom

I've tried H100V in the .257 and some other rounds. Had pretty good luck with accuracy in the .257, as well as velocity, but when I tested some .30-06 loads in cold they lost almost 200 fps from 70 F. to zero.

I've found the same tendency in most powders that are advertised to produce very high velocities in specific applications.