Best powder for 7x57 mauser?

Mount Sweetness

Mount Sweetness

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Looking for recommendations on a good common powder for 7x57 with bullet weights in the 130gr to 150gr range.

I'd like to get as much velocity as possibly, modern action.

Anyone have first hand experience?

All I have on hand currently is Varget and the listed velocities seem weak.
 
H414 is the best powder I have found after trying a few others. The load seems to work well in a couple friend's rifles as well. Best accuracy was found at the heavier end of the charge weight. A friend was using Varget but when he tried the 414 he had much better results.
As for experience first hand, been using this load for five years. Taken an Elk, 3 Deer, a Moose, two Bighorns and a Wolf so far. Seems proven enough for me.

This is for the 154gr Hornady bullets (IB,SP,RN), the lighter ones didn't shoot very well in my rifle.
 
MS

My 7x57 shoots many things well, but my go to load is with barnes TSX 140gr. gave me great groups at 200 yards and killed big Alberta deer very effectively. FS
 
49.0 grains of W760 under a 140 grain bullet will give you 2700+fps from a 22 in bbl at less than 40,000psi.
This is a very accurate load in at least a dozen rifles. It's light recoiling for smaller or recoil sensitive shooters and is safe in M93 actions. At 2700 fps its trajectory is flat enough to equal a 308Win and is very close to the 308Win in most aspects for hunting.
 
I will let you know my results tomorrow going to range in the morning to try a few different loads.
 
Win 760/49gr for 140 gr and Re22 /50gr for 160 gr in my 21H BRNO all make slightly larger than one hole 3 shot groups..........Harold
 
Harold, I use those same exact loads in all of my 7x57s. Brazilian mausers, Rem 700 Classic, Win Mod 70, BSA and a couple of Spanish mausers. They are low pressure and safe. Not only that, the W760 load duplicates the velocities of the south american loads in their milsurps. The Re22 seems to work better from the 29in barrels than it does from shorter barrels though. The Re22 seems to be to slow for the 140grn bullets as well.
 
Fed mag primers used in all my loads............Always use them with Win 760........................Harold *** Win 760 is also the CAT"S A$$ in .308Win/150gr ,270 Win/130gr + .250 Savage/100gr
 
For any case in the 45-60 gr capacity range with bullets of 130-180 grains, I always try one of the 4350's first. That basically covers all the x55 and x57 mauser cases, and the '06 and 08 family of cases.
 
"...listed velocities seem weak..." The 7mm Mauser isn't an anti-tank gun cartridge. It dates from 1892 when smokeless powders were still relatively new.
Accuracy is far more important than velocity. Varget will do nicely.
 
I have used Norma MRP in the 7x57 with 140-160 grain bullets for several decades now. But all the powders mentioned work well, and I would also add IMR 4831. In a modern action, velocities with the 140 are in the 2900 fps area, the 150 is around 2800 and the 160, 2700. Regards, Eagleye.
 
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"...velocities with the 140 are in the 2900 fps area..." Not with IMR4831 they aren't. Max velocity for a 140 is 2759fps.
"...the 150 is around 2800 and the 160, 2700..." You must be looking at a very old manual. Neither even comes close to those velocities with any powder.
 
No they're not .Not as far as I know? Re22 was very close to the older Norma MRP,HS7 is same as Win 571 and H-110 clone of Win 296 etc................Harold
 
Keep it coming boys, leaning towards Win760 as I will be most liking using 140gr bullets.

Bullet recommendations for whitetail hunting?
- obviuosly everyone love Nosler Partitions
- Does anybody have positive things to say about Sierra Gamekings on deer.....or Hornady Interlock.....etc etc?
 
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