Home Forums Reloading Big Game Rifles Good 7x57 Mauser loads

I'm getting 2,544fps with a Woodleigh Protected Point bullet with 45.5gn H4350 Norma brass and a CCI LR primer. There's no pressure signs so I'm going up to 46gn to see if I can top 2,600fps. Accuracy is OK 3 shots in under an inch at 100m for the most part.

51gr of reloder 19 with the TSX 140gr bullet

I ran across this last night. I looks as if Ramshot is providing some updated/modern reloading data.

-------------------------

Since we do not have any specific lab tested data on this caliber, we can provide you with some guideline, based on calculations and information from other sources.

Caliber: 7x57 Mauser.
Barrel length: 24”
Pressure spec: <56565 Psi/3900 Bar (CIP) original


Powder: Ramshot – BIG GAME®. (1st Choice)

Bullet weight: 100-110 grains.
Start load: 47.7 grains (2975 - 3075 Fps)
Maximum load: 53.0 grains (3275 – 3375 Fps).

Bullet weight: 120 grains.
Start load: 45.0 grains (2700 - 2800 Fps)
Maximum load: 50.0 grains (3000 – 3100 Fps).

Bullet weight: 130 grains.
Start load: 43.7 grains (2575 - 2675 Fps)
Maximum load: 48.5 grains (2875 – 2975 Fps).

Bullet weight: 139/140 grains.
Start load: 42.0 grains (ca 2550 Fps)
Maximum load: 47.0 grains (ca 2900 Fps).

Bullet weight: 150-154 grains.
Start load: 40.8 grains (ca 2450 Fps)
Maximum load: 46.0 grains (ca 2800 Fps).

Bullet weight: 160 grains.
Start load: 40.5 grains (2350 – 2450 Fps)
Maximum load: 45.0 grains (2600 – 2700 Fps).

Bullet weight: 175 grains.
Start load: 39.6 grains (2300 – 2400 Fps)
Maximum load: 44.0 grains (2500 – 2600 Fps).


Powder: Ramshot – HUNTER®.

Bullet weight: 120 grains.
Start load: 48.6 grains (ca 2780 Fps).
Maximum load: 54.0 grains (ca 3140 Fps). LD ca 106%

Bullet weight: 140 grains.
Start load: 46.8 grains (ca 2600 Fps)
Maximum load: 52.0 grains (ca 2950 Fps). LD ca 102%

Bullet weight: 150-154 grains.
Start load: 43.7 grains (ca 2450 Fps)
Maximum load: 49.5 grains (ca 2750 Fps).

Bullet weight: 160 grains.
Start load: 43.7 grains (ca 2375 Fps)
Maximum load: 48.50 grains (ca 2675 Fps).

Bullet weight: 175 grains
Start load: 42.0 grains (ca 2300 Fps)
Maximum load: 47.0 grains (ca 2650 Fps).LD ca 99%

I've got my load for the 160gn Woodleigh at 46gn H4350. I'm getting 2,579.4fps out of a 24inch barrel. With the Hornady 154gn Interlock and 48.5gn H4350 it's 2.680fps.
I also have a new stock in the African pattern English walnut on way.

Anybody mentione 50 gr H4350 and a 140 gr AB? Might work.

Started out using AA4350 under 160 grain Speers and Sierra bullets. Worked great and killed everything no problem! My barrel is only 19 inches long but throat length lets me load out to 3.16 with most bullets I used 46.0 grains. Then I starting buying 150 grain Ballistic Tips from the Shooters pro shop and came into a supply of WC852 surplus powder. Worked up to 48.0 grains and used this load under both the 140 gr. Partitions and the 150 gr. Ballistic Tips. My guess is that the velocity is somewhere between 2600 and 2700 fps but this load has taken many deer and far more feral hogs with ease. I built this rifle in 1993 and just this year put it on the backup rack so I could burn up some of the .308 diameter bullets I have. The rifle is still finely accurate and a pleasure to shoot. It will be back on line, I loaded every piece of brass I have for it before I put it into the safe.

46 grains of WC-852 gives me 2648 fps with a 140 grain bullet in my 22" M.98.

Going to use this load in my CZ 550 7x57.

175 gr Nosler Partition,51.0 grs of VV N-165,Winchester Large Rifle primer. Getting an average of 2600 fps from the 23.6" barrel and groups are just under an inch.

Nice!

Sorta light for those big NM jackwabbits, maybe with a head shot... wink

DF

Stunt shooting.

When I hear "stunt shooter", I think of Ingwe and his deer whacking .223AI...

But, up against your main wabbit gun, that .460, this one definitely fills the bill for a stunt shooter...

DF

Yup,it does!

Does anyone have any good loads with the new(ish) IMR Enduron powders?

Does anyone have any loads ( have actually used them) for 0-10 degree cold weather? I like to hunt late season elk/mule deer cows and does. Our weather that time of year ( Dec to first part of February) can be -4 to 35 degree, depending on the storms we get. I'm looking at 150-175gr loads...I'll be using either Norma or RWS cases. Rifle is 22" Mod 700 Classic.

Rephrased; what was the "coldest temp" you either (a) killed game with your load and/or (b) you tested it for speed/accuracy?

From my experience 50 gr of ADI ar2209 gives (depending on rifle) between 2700 fps and 2800 fps with a 150 gr Core-lokt and is a pleasure to shoot...51 gr will shake your teeth.

ADI Powder equivalents

As per usual work up loads for your particular rifle.

Not from a 7x57 but two years ago I killed a cow elk with a 30-06 using W760 powder. Load was worked up at roughly 100* here in Tucson and the elk was killed in New Mexico as 6* above zero. It was maybe 10* at the Whittington Range at Raton when I checked zero prior yo the hunt and point of impact was unchanged.
I've done several hunt on the same ranch in NM using a .35 Whelen with Re15 powder, and a .270 and .300 Win, Mag. that using WMR powder (long discontinued) when tested at the range showed no change of impact. The whelen was used in the taking of five elk. The .270 and .300 Mag. were back up rifles.
Paul B.

Thanks Brother PJ! I've tested R15 in my old 35 WAI down to single digits at the range and there was absolutely 'zero" change of any kind. I "did" see some loss of velocity in a 760 .280 load, but zero was unaffected out to 200yds. When it gets super cold my eyes start watering and I can't shoot well beyond 200 unless conditions are right ( dryer, no wind,etc). Thanks again Pard.

Just scored a 24" barrel, express-sighted, Ruger No.1-A in .275 Rigby on GunBroker. This will be my first 7x57, or any 7mm for that matter. While awaiting delivery, I've been thinking about what I should feed it. I have prior experience owning No.1s in .223 to .375 Ouch & Ouch, so I'm familiar with most of the No.1's traits and how to deal with them. As I have some IMR 4350 on hand, I'm drawn to RevMike's suggested 46 grains of it under a 160 grain Sierra GK. I also understand that Ruger 7x57 throats tend to be longish. I would most appreciate any other observations, suggestions or recommendations you all might have.

Do you own a chronograph? If so,work up to no higher than 2700 fps with the 160 gr Sierra.