a while back i started a thread on this bullet and cartridge but it sort of got side tracked, so, I went out and bout a box to try in my Roberts chamberd springfield.
I tried them out today and I thought it was prety funny cause my 1st thread was regarding using the bullet for deer size game.
Well, its a rather moot poit acuse this was the 1st bullet my prety custom rifle won't shoot worth a hoot ! I shot 5 different loads off the hood of my new toyota 4X4, and that was funny in its self, the chev i traded it for was 2 wheel drive and I am to short to really get a good rest on the new truck.
Anyway trying to steady my rifle on the leather rest while standing on my toes, at a paced off 100 YD target in a wind the worst group I got with an other load was 1.25 and the
90 grain sierra HP witch everybody says is so acurate not ony shot about 3 inches I can.t even get it to feed worth a damn unlesss I seat
it real deep. But I have another Roberts and a 25,06 in witch to give it a try...tj3006

When I'm tuning a .257" bore rifle for hunting accuracy, I try the 75 grain HP and 90 grain BTHP Sierras. If a rifle won't shoot either, or both, of those 2 bullets into acceptable groups, I know there are still unresolved problems with the rifle in question.

Jeff

Hello there 260 guy, have not yaked with you for awile ! As you may remember, i have a pair of .257s and 1, 25,06. My Custom 03 springfield in the Roberts is the one I am taliking about in the above post. It is really a good shooter, if it goes over an inch and a half with what ever I am shooting I rather suprises me, when looking through the scope at the holes on the paper, I often think a particular group looks bad but when I measure center to center they arrseldon over about an inch and an 8th.
but the sierra 90 grain HP just did not seem to do a thing for me.
I just loaded 5 over IMR-4064, and I will probably load 5 more, and try them in my little robbie , A ruger MK2 RL. So far that one loves a 100 grain tripple shock with 46 grains of H-414 under it, but I can't seem to find any thing else it likes.
I would be very happy to find a load with a cheaper bullet than the barnes to shoot coyotes and such with.I really don't do any varmint hunting but I like to take a rifle along when i am, in the woods, just in case i can improve my marksmanship on a coyote. ...tj3006

The most accurate bullets I have ever used in my 257's is the sierra 117 boat tail. They are probably tough enough for yotes.

Hey Thomas sounds like you are having fun with your .25's.
In my Ultra Light Ruger in .257 Roberts the very best accuracy is the Sierra 100 grain SPBT's with IMR-4064 powder. The gun also shoots really well with the 90 gr HP's. If yours is shooting the 100 grain Triple shock which is a longer bullet than the 100 grain Sierra yours might do well with other bullets of that relative length like the 110 gr-117gr-120 grain variety. I know these aren't a varmint bullet but give them a try and see your gun may really prefer the longer-heavier bullet.

I have tried some of the bullets mention in my little roberts but I did not try them with IMR-4064, I did try a few loads with that powder awhile back and it showed promise. So at this time my plan is to mess with the 4064 and a few different bullets, I would prefer a lighter one for a trajectory similar to what the T-shock gives me but that is not a must.
Hope to have some trigger time this weekend...tj3006

Perhaps your chamber has a deep throat to take advantage of the long Springfield action. If the shorter 75 and 90 grain Sierras don't work, I'd try some bullets in the 115 to 120 grain range. The 115 grain Nosler SBT and BT both shoot MOA groups in my Winchester 70 25 WSSMs.

Jeff

260: What is the "115 grain Nosler SBT"? I'm aware that Nosler makes a 115 BT and a 115gr Partition in 257. Have I missed one?

I do not think that either of my Roberts rifles have teribly deep throats. I often seat my bullets by cloasing the bolt on a long seated round, then turning the die stem down till it reaches the bullet, then lowering the ram and givin another .010.
I think its just a picky rifle, and since I have 16 other rifles in various chamberings, as long as the 100 grain t-shock shoots so well, it is a very good deer antilop and even caribu rig should I be lucky enough to go after a bu one day. But a cheaper load would be usefull for long walks in the woods or desert countr for coyotes or if I got real lucky and got a shot at a mountain lion...tj3006

Nosler 115 grain SBT is the Combined Technology, TC, version of the 115 grain BT. If you go to www.nosler.com, click on products or bullets, you can find the CT silver ballistic tip.

Jeff