I am looking for info from anyone who has used the speer 145 & 160 Grand Slam bullets in a 7x57. how did these perform on game, accuracy etc?

I used them years ago. For a friend. We both used on deer, where it performed as good as any bullet on the market. However, accuracy was not impressive.

The best load we achieved was 1.7".

Obviously that is one scenario, one rifle, and all of the conditions we were subject to.

Slams are not known for accuracy overall but performance is good.

Haven't tried the 145 gr. redundant to the Nosler partion 150 in my book, and I am a big fan of the 150 NP.

I have tried the 160's though in both my 280's and 7x57. I don't have the accuracy issues Doc has in my 7x57, and I really haven't done enough bench time on the 280 to say one way or the other. My 7x57 gets me right at 1 MOA with them though, which for that heavy of bullet in a 7mm mauser is just fine in my book, its not a 300 + yard setup anyway, and I confine my use to around 250 yards.

I haven't been using these much in recent memory not because of any real problem with them, but I am pretty much a 2 load guy on my 7mm. 150 Nosler's and 175 Barnes originals which I am transition mode to 175 Nosler cause the Barnes are extinct.

I've tried Speer's grand slams in several calibers.....never found good accuracy with any of them.

I don't even look at them anymore.....A-Frames shoot well for me.

quote:

Originally posted by vapodog:
I've tried Speer's grand slams in several calibers.....never found good accuracy with any of them.

I don't even look at them anymore.....A-Frames shoot well for me.

I agree. I've never been able to get Grand Slams to group in less than 1.5" in any caliber that I've tried.

Actually, I've had very good luck with the GS, as far as accuracy goes. Matter of fact, the best 5-shot group I ever got from my Model 70 .300 Win was with 180 gr. Slams. I have not loaded any of the .284's yet. But all 3 of the .300 Win Mags I load them for will toss them into an inch or so. They club big game as well as any other bullet.

The Grand Slam was changed a few years back from the old dual-core design to a mono-core, along the lines of a stouter Mag-Tip.

It'd be useful if all repliers specified which version their experience lies with.

No hard evidence of my own, but I imagine the new ones are more accurate than the older ones.

RSY