Dear All,

Have any of you loaded the 110 grs AccuBond in the .257 Roberts?? If yes, what powders worked for you, and in what quantities??

(If by any chance your powders were from Vihtavuori, I'd be even more interested. I had been hoping to use VV N160, but I can't seem to locate any load data for this combination...).

Thanks very much in advance.

- mike

I loaded the acubond
For my 20 inch ruger , over 37 grains of IMR-4064.
It shot real well. I am planning to try 38 grains this weekend.
I Also plan on shooting the same bullet with
about 44.5 grains of H-414, as that has been a dandy paowder in the Roberts as well as my .65X57 and 7X57.
I have another Riffle chamberd for the roberts.
I got .48 inch groups for 3 shots with 40.5 grain IMR-4350. I worked that one up to 43 grains, and 2 3shot groups avaraged .80.
Velocity is prety slow, you could probably start at the 43 grains safly enough.(asuming your rifle is a newer model.) I am extra carfull with this rifle as it is a low numberd springfield.
I am hoping to get 2900 With the springfield And mabye 3000 with the ruger.
I reeally need to start playing with the same bullet in my 26 inch custom 25,06...tj3006

Thanks TJ, that gives me some reference points for burn rates.

- mike

mho, I have been using the 110 since it's introduction in my Ackley Roberts, and while I use R22 for that, I would think that since V V 160 is sort of in the range of IMR 4350 you might try to work up based on that. Additionally, the 115 Nosler BT or partition would also be a place to find some approximate data. As a side note I have used the 110 on several deer and the results are quite satisfying, the basic Bob will probably do even better with it! Good luck.

I agree with .308sako, use 4350 data with Vh N160 as a starting point. N160 will usually require about 2-5% more powder for similar velocities, and should be an excellent powder with this bullet in this cartridge.

Thanks Guys, we'll see how it goes... I'm waiting for some better dies to come in right now. The rifle is a sporterized Argentine Mauser, and when I worked with it last, it was a bit finicky. We shall see whether I'll manage to "tame the beast"...

- mike

MHO,
A Roberts on an Argie, sounds cool ! got any pics ?
My Ruger was finiky as heck when new. For your info. I have recomended this load to a few guys and all have been happy.
Try a 100 grain Tripple shock barnes over 46 grains oh H-414. Its fast and acurate in my ruger, but I think its probably to hot to shoot on my old springfield...tj3006

TJ, I don't actually have any pics, but maybe I could take some (although I must the World's worst photographer).

I might be able to get hold of the H414 powder. We don't have much of a selection over here, but Hodgdon happens to one of the easier brands to obtain.

Is the Roberts a problem caliber in terms of accuracy (if such a thing exists?)?? Nah, probably not. One should expect more problems with a larger powder column...

- mike

In my experence ,and also what i read, the Roberts is an easy cartridge to get accuracy.
My custom springfield is much harder to find a load it won,t shoot well then it is to find one it will shoot well...tj3006

mho,
Try the 100gr Barnes TS bullet with IMR 4831 or IMR 4350 and maybe RL-22. This bullet will do every thing and then some. I shot a very big mule deer last year with this bullet at close to 300yd. The bullet broke both his shoulders and exited. I've been shooting my Robert's since 1982. It's a great round

Mike,

6.5x55 max is about 51gr with 100gr and N160 but my 6.5x57R managed 54gr (loooong drop tube and compressed) of N160. Add in the extra 10gr of bullet and the marginal bore difference and I suspect you will be about 47gr or so for max. I would work up from 44gr.

The load books can't seem to make their minds up about N160 - depending on cartridge it's charge weights are either greater or lesser than H4350....

1894, I think you are just about right with those numbers. I found some 120 grs loads, which had been worked up to 48 grs - apparently with equivalent case head expansion as factory loads. So 47-48 grs was where I was planning to make my (initial?) max for the 110 grs. That sounds like it would allow me to stay on the safe side.

To be honest, as much as I'd like to get good results both in terms of accuracy and velocity, I personally see little point in hot rodding calibers such as the .257 Roberts or the almost equivalent 6.5x55. Should I be in need of more oomph, I can always pick up a .270 Win, a .257 Wby or the .300 Win Mag. Ideal for me would be velocities around 2700-2800 fps, giving me about .30-06 ballistics.

- mike