7x57 chronograph speeds

[7x57 Shooter]

I took my Remington 700 7x57 out today to try out the newest loads for it.
I was shooting some older style 150 Nosler Solid Base bullets, I set up the chronograph at 15 feet from the muzzle.
I got 2740 fps with the 150's, the 140 Nolser Partition's got 2830 out of a 22 inch barrel.
I think the lil 7 is doing alright for the upcoming deer and bear season, take care,
7x57 Shooter

 

[FilippoMo]

Re: 7x47 chronograph speeds

Is it 7x47 or 7x57?
Filippo

 

[wyoming .260]

Seems your in the right area with the loads. I am doing about exactly the same speeds. What powders are you using?

 

[7x57 Shooter]

The first powder I tried was IMR 7828, good stuff, next will be IMR 4350 as it does very well with the other various loads I tried.

 

[normmatzen]

I have switched to RL-17 in my 7X57. According to QuickLoad, it is the most efficient powder for the 7X57.

The speeds are just a tad higher than H4350, gn for gn.
I am getting essentially what you see. With Barnes TTSX 140 gn and 47.5gn RL-17 I get just at 2800 fps. I also use hBN.

 

[wyoming .260]

I used H414 with 140s and IMR 4831 with 160s, Got good speed. I started with RL-17 with 140s but don't have enuff for three different guns and can not find any here!!!!!!!!