7x57 chrono results

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303carbine

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Remington 700 Mountain Rifle
Barrel length 22 inch
140 grain Nosler Partition's
50 grains H4350
Federal LR primers

2825 fps 1st shot
2811 fps 2nd shot
2812 fps 3rd shot
Primers still had the radius and the bolt was easy opening so this velocity can be improved on.:dancingbanana:
PS, thanks to hs4570 for his chronograph expertise.
 
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thats close to the speed i get out of a 7 08 with 140 partions. are the partions accurate, in mine the seem very accurate for a hunting bullet.
 
Had some good luck with mine, today, finaly got that elusive 1" group! with 46gr of H414 and a 150gr game king, seems that the old girl just wanted a heavier bullet than the 139's I used before.
 
my 7-08 loves varget. Varget & 139s, Varget & 125s, Varget and 154s...
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Get a real rifle!
the next rifle I buy is going to be chambered in 7x57
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Best thing you'd ever do mate, just ask 303 carbine and Noel on here, (Beats the hell out of that copy 7mm-08) Oh and I had a 7mm-08 shot good but was a little fruity
 
7x57

Hey TB, good to hear that your next rifle will be a 7x57.:) I know your rifle will never see a plain old ordinary Hornady SP, but that's OK because the 7x57 is a classic and deserves the best you can put in it.:cool: I know you will come up with a scorcher long range load for it, and when you do please post your findings. The other 7x57 shooters here will be glad to try your data. Mine is a Remington 700 and I really like it.:dancingbanana:
 
Nice work John! Now your set for those pesky wabbits.:D

I am getting the same velocity with my 154gr Interbond, CCI 250 primer, RP case and 49.5gr of H414.

My extreme spread for three shots is a bit more but my barrel could use a good cleaning too. If I remember right, it was 2817, 2825, 2830. With that same spread, it printed a measured .400" group at 100yds. Still need to try it more, might have been a fluke but it was shooting consistantly moa.
I have been playing with the C.O.L. a bit.....

Any Big horn had better watch out this fall.:)

Regards,
Noel
 
303carbine said:
Remington 700 Mountain Rifle
Barrel length 22 inch
140 grain Nosler Partition's
50 grains H4350
Federal LR primers

2825 fps 1st shot
2811 fps 2nd shot
2812 fps 3rd shot
Primers still had the radius and the bolt was easy opening so this velocity can be improved on.:dancingbanana:
PS, thanks to hs4570 for his chronograph expertise.
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Ok, I guess someone has to learn me. I just went to the Hodgen online load data and found your load.

140 GR. NOS BT 140 H4350 .284" 3.000" 43.0 2530 40,400 CUP 46.5 2682fps 46,000 CUP

they show MAX velocity with MAX powder at 46.5 grains for the 140 bean. So you used 50 grains.. Just how is this safe? I continually asked people on this forum if the max load data published is as far as you can go unless your nuts! and so far everyone has said YES, I.E. NEVER load beyond the published maximum data. And here you are telling us that you have gone 3.5 grains over the max...

So what pressure are your getting? Do you know? Hodgen says with 46.5 you are getting 46,000 CUP. I wonder if by loading 50 grain of H4350 you are over max pressure???

Man please explain to me what you are doing. Because if you can ignore the published max load date then what is the POINT of max load date.... Is there something wrong here.:cool:
 
Quite simple, 303carbine is using a modern Remington 700 Mountain Rifle,
It is a strong action.

The data Hogdon puts out is for early rifle's with weaker actions, they do this to cover thier a$$es.

Try that load with a eary 95 action and lookout, try it with a 98 action and it maybe OK,

As always work up your load for your rifle, never take someone elses recipe and think it will work in your rifle.
 
brnolvr said:
Quite simple, 303carbine is using a modern Remington 700 Mountain Rifle,
It is a strong action.

The data Hogdon puts out is for early rifle's with weaker actions, they do this to cover thier a$$es.

Try that load with a eary 95 action and lookout, try it with a 98 action and it maybe OK,

As always work up your load for your rifle, never take someone elses recipe and think it will work in your rifle.
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Ok, so what your saying is we can IGNOR the MAXIMUM POSTED LOADING OF WHICH I POSTED HERE FOR YOU ALL TO SEE, based simply on the fact that I am using a modern Rifled Action? SOUNDS PRETTY DANGEROUS TO ME. I mean if you don't know what pressures your generating you could be sitting on a time bomb don't you think.

And also I have some doubts about what you said of that published Hodgen data being based on so called "OLD WEAK ACTIONS".
 
Yes we can ignore max listings in some rare instances, but the decision to do so is based on knowledge more advanced re-loaders and rifle aficionados possess and it will be totally safe to do so.

If it scares and confuses someone then obviously it is not the right thing for them to do. Even more dangerous is those who know just enough to make them selves dangerous.
 
based on the mountain rifle also being chambered in 280 and 30 06 it is capable of higher pressure than would be safe in a 100 year old m96. according to a hogdon book i have max load in a modern ruger is 140 grn with 53grns of h4350. the book has 7x57 loads that would be safe in the older rifles and a section for modern rifles as well.
 
K98ACTION said:
Ok, so what your saying is we can IGNOR the MAXIMUM POSTED LOADING OF WHICH I POSTED HERE FOR YOU ALL TO SEE, based simply on the fact that I am using a modern Rifled Action? SOUNDS PRETTY DANGEROUS TO ME. I mean if you don't know what pressures your generating you could be sitting on a time bomb don't you think.

And also I have some doubts about what you said of that published Hodgen data being based on so called "OLD WEAK ACTIONS".
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I'm not making data up as I go.

My hodgdon 25th edition manual has 2 catagories for 7X57
one for early actions and one for "7X57 Mauser Heavy loads for ruger only" (This would also apply to Remington as well) There is a 3 grain difference in Max loads between the data for 140gr bullets with H4350 data.
 
Are rifles are different,I once had a 375 H&H with a very long throat and when max data from the hornady manual was used I was getting approx 120fps below their stated velosity.This is not an exact science,handloading is about tayloring loads that suit your rifle best.No 2 rifles are the same.
 
Republic of Alberta said:
Yes we can ignore max listings in some rare instances, but the decision to do so is based on knowledge more advanced re-loaders and rifle aficionados possess and it will be totally safe to do so.

If it scares and confuses someone then obviously it is not the right thing for them to do. Even more dangerous is those who know just enough to make them selves dangerous.
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I certainly am not scared, CONFUSED YES,, only because this bloody forum is starting to confuse the HELL out of me... Since day one I think my questions have been pretty clear. And I have resorted to this forum for help and advice.

Re-cap I indicated to the forum the Hodgen On-line load data for 160grn bullets using H414 gives a max loading of 42.5 grains, producing 42,500 cup giving a velocity of 2400fps approx.. that's IT that's ALL!

People have come back and indicated that they get way more than 2500 fps.

Great! So then I ask my local gun smith and others if I can load above published max loads. ANSWER NO!

Then you guys all come back and say YES!

Some of you say there is published load data indicating loads for 2500 fps plus using 160grn bullets with H414.

Some of you come back and say that you acheive you 2500 fps plus velocities by loading beyond published data, by feel and because your experts...

HOLY #### WHAT AM I SUPPOSE TO THINK.

This forum is bloody dangerous. I mean if you want to answer someone's question bloody well answer it don't give bits and pieces of information and confuse the guy. THAT'S WHAT IS DANGEROUS.

#### IT.
 
K98Action; Not because they are experts but because they know how to interpret pressure signs as shown by their fired brass, brass life, primer pocket expansion, bolt lift, chronograph readings taken with each variance of load and some other quantifiable means. The information on how to do it is widely available but it requires a bit of study and knowledge of your own rifle's strength. The reloading books are establishing a top end as established by SAAMI which takes into consideration all the old and weaker actions that are still being used. And, not all cartridges can be interpreted the same way as some are already established aby SAAMI at much higher operating pressures because no commercially made rifles were made in the weaker actions for that caryridge. So, in a 300WSM for example you may find max is excessive in a given rifle but can be increased only marginally in another rifle of the same make because of a variance in chamber or bore dimensions.

If you learn to interpret pressure indicators and still apply care, common sense and caution you won't have any unexpected problems. A chronograph can go a long way in helping you.
 
Yes, I will get one. I am just a little pissed because the confusion for me was were the so called "work up point" began from. I.E. from the min load data to the max load data. Or from the max load data to beyond...

You see several people have told me point blank NEVER LOAD beyond the max load that is published by the powder makers.

So if I listen to that advice I will never get my Oberndorf 98, 7x57 to spit 160grn bullets out faster than 2400 fps using H414, as Hodgen max data for that load says so.

But if I use the max load data as the starting point for my testing, as long as I look for over pressure signs I can work up from there until either A. Accuracy falls off, or Over pressure signs appear. Then back off a bit until accuracy is acceptable and over pressure signs are gone.

Is this a safe approach?
 
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