7-08 vs 30-06

What will penetrate deeper/leave better wound in dry newspaper?

  • 140gr TSX

    Votes: 90 60.8%

  • 200gr Sierra

    Votes: 42 28.4%

  • Both the same

    Votes: 16 10.8%
  • Total voters
    148
Gatehouse

Gatehouse

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Onthe other thread, we went sideways and started takign about the 7-08 with 140gr TSX bullets vs the 30-06 with 200gr cup and core bullets.

There were some guys that said that the 30-06 (especialy with heavy bullets) is a step up in klling power than the 7-08. Others disagreed, and siad that the 140gr TSX will penetrate like hell, and that you coudn't tell the difference between the two.

Who is right? Hell...I dont' know...I rarely use 200gr bullets, although I do rememember that the 215gr 303 bullet was quite a killer...

So.....What's a guy like me to do? Try it out, of course!!

I loaded up some 200gr Sierra bullets in the 30-06, a heavy, but not max load. These will be fired form a Stevens 30-06.

Since I don't own a 7-08, I made some reduced loads for my 7RM, which replicate 7-08 velocites with the 140gr TSX.

I will fire them into newspaper, check for penetration depth, and see what the "wound" channel looks like. And then I will weigh them and see what retained what, etc. (Yes, I know that newspaper oesn't replicate fleash and bone, but we have been talking about performance on *heavier* game, and that stresses a bullet. Here we wil see which one handles those stresses better. Either one is gonna penetrate end to end on a deer with little trouble, I expect! :) )

I'll post results tomorrow, (when it is light out and I can actually shoot) and pics probaby not unti I get back to work with high speed connection (Tuesday)

Anyone want to guess what will perform better?
 
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I voted "Both the same"
I'm betting the Great penetration characteristics of the Lil 140 TSX bullet will duplicate the momentum of the much larger 200 grainer and give similar performance.........or something like that:confused:
I'll give the slight edge to the 7mm-08 however.....just cause:dancingbanana:
 
Hmm, tough one, hard to call. I'd put a slight edge on the '06. If nuthin else, it's packing a lot more energy which has to go *somewhere*, so I'd suspect it'll be a more devastating 'wound.' Historically the 200 gr cup 'n core bullets are good penetrators.
 
Too many variables. Are you using the same powder in both rounds? Pressure? loading to the same percentages of SAAMI Max for each round? Barrel length on both guns? Are both bolt guns? If one is a semi you lose some oomph in the gas system. What about bullets? Same type of bullet for each round?

So far your test sounds not very scientific. Sorry.
 
Claven2 said:
Too many variables. Are you using the same powder in both rounds? Pressure? loading to the same percentages of SAAMI Max for each round? Barrel length on both guns? Are both bolt guns? If one is a semi you lose some oomph in the gas system. What about bullets? Same type of bullet for each round?

So far your test sounds not very scientific. Sorry.
Click to expand...

Sounds like a reasonable test to me, at average velocities per calibre, both bolt guns, (gatehouse wouldn't buy a semi;) ) and two different bullets (that's the whole purpose:rolleyes: )

Only question is target distance?? let's see the pics when your done.
 
Claven2 said:
Too many variables. Are you using the same powder in both rounds? Pressure? loading to the same percentages of SAAMI Max for each round? Barrel length on both guns? Are both bolt guns? If one is a semi you lose some oomph in the gas system. What about bullets? Same type of bullet for each round?

So far your test sounds not very scientific. Sorry.
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Charges are:

30-06
RL19 55gr.
Bullet Sierra game King
Velocity about 2600fps I will get exact velocities from the test

7RM
IMR7828
Bullet- 140gr tsx
Velocity 2820fps ( I know this from load work ups in this rifle)

I am using what is a "regular" max load for both cartirdges. According to the manuals, I coudl put another grain in the 30-06, of RL 19, but most 200gr loads peak around 2600fps anyway.

No idea baout pressure, dont' have a strain guage

Both are bolt actions

Whole point of this is to show different bullets performance, which you would knwo if you read the first post, so no, they are not the same bullets.

Distance is 80 yards, the farhtest I can shoot in my back yard, and still conduct a test like this. I think 80 yards is adequate, since many average moose shots are within 150 yards, and really, we are only comparing one bulet to another. Your bullet will be *stressed out* the most at closer ranges due to higher velocity, so this will give us some sort of comparison.

My object here isn't to find perfect, infallible data, just to see what bullet will hold up the best under these circumstances. I am not a scientist, nor do I have days and weeks to burn doing a *perfect* test*.

I am just trying to compare 2 different cartirdges, in the context that we compared them. Specifically, 140gr TSX 7-08 to 200GR cup and core 30-06, both at a "normal"operating velocity.

To do this scientifically, we need to line up about 200 cows and shoo them in the exact same spot with the 2 differnet loads. And time thier demise, etc.

If someone wants to volunteer 200 cows, I'll get right on it!!:dancingbanana:
 
The TSX may not open up in dry newspaper.

The 200g Sierra will leave a wider "wound" in the paper. The TSX (if it opens up) will leaver a longer wound.

If you were able to measure the volume of the wound channels the 200g Sierra would be larger.
 
Republic of Alberta said:
The TSX may not open up in dry newspaper.

The 200g Sierra will leave a wider "wound" in the paper. The TSX (if it opens up) will leaver a longer wound.

If you were able to measure the volume of the wound channels the 200g Sierra would be larger.
Click to expand...

Interesting....

Whydo you think the TSX won't open in dry paper?:confused:

Why do you think that the 200gr will leave a *wider* wound? Slightely larger diameter?:confused:

I am not sure if I can *measure* the volume of the wound, but I will try to make a determination, of course!:)
 
I think the 7mm will penetrate deeper. My 7mm RM with 160gr XLC @ 2900 fps out-penetrated my .375 H&H with 285 gr Speer Grand Slams @ 2700 fps. The .375 with a 300gr Sierra was not even close.

The .375 with the 270gr TSX @ 2700 fps penetrated the most, but it didn't open up very well. In fact, the diameters of the recovered 7mm XLC and the .375 TSX were almost the same.
 
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Interesting post. At first my thought was the 06 will out penetrate and give a more severe wound, but now I am really wondering :confused:

Take lots of pics of the test for us.
 
In your Data you say 7RM? I thought this was a 7mm-08 vs 30-06?
The velocity looks right for a 7-08 though...
Having little experience with the TSX I picked the Sierra for Penetration ...
 
SuperCub said:
Poll is skewed ............ If you gonna compare the 30/06 with the 7/08, you should be using the same bullets.





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Click to expand...

The reason it was started was because of the 140gr TSX in the 7-08 vs 200gr Cup and core 30-06 debate, on another thread...

Basically, it was stated that the 7-08 wasn't far off from the 30-06, if the 7-08 was using premium bulets,and the 30-06 any heavy cup and core bulets.

Others felt that a 30-06 200gr woudl be far preferable...That the 30-06 was a step up in power..

The basis for the argument is that lighter, but premium bulets are just as good as the regular, but heavier buets. OR that the heavier bulets will win out because of mass.

We wil see....
 
BIGREDD said:
In your Data you say 7RM? I thought this was a 7mm-08 vs 30-06?
The velocity looks right for a 7-08 though...
Having little experience with the TSX I picked the Sierra for Penetration ...
Click to expand...


Bigredd

We were discussing on another thread 7-08 with 140gr TSX vs 30-06 with cup and core bullets, so...........

I am indeed using a rifle chambered int he 7 RM cartridge. However, I loaded it down to 7-08 velocities.

I believe that regardless of cartridge, a bulet wil perform the same, at impact, if at thew same velocity.
 
Gatehouse said:
The basis for the argument is that lighter, but premium bullets are just as good as the regular, but heavier bullets. OR that the heavier bullets will win out because of mass.
Click to expand...
I think the premium bullet will prevail, esp over the Sierra which doesn't have a good reputation for being "tough".



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