130 gr. bullet push at top velocity give the same recoil has a 200 gr. bullet

Mr.Rigpig said:
Exactly,
Speed up the 130 enough and it will recoil more than the 200
Kinda an apples to oranges comparison.
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Not exactly true.

You have to consider the weight of the propellant aswell. Not just strictly bullet weight and velocity. That is why the calculators include it. Because the charge weight is also a projectile that is producing the recoil.

So depending on the total weight of each load, propellant plus bullet. Generally speaking, the heavier bullet will normally produce more recoil. Unless it's a reduced load, or something like that.
 
yes there his much more powder for the 1300 to reach 3300 fps
everything was entered in the JBM calculator exactly like the load data found on the load data center and it gives almost the same recoil
 
Denver Steve said:
Not exactly true.

You have to consider the weight of the propellant aswell. Not just strictly bullet weight and velocity. That is why the calculators include it. Because the charge weight is also a projectile that is producing the recoil.

So depending on the total weight of each load, propellant plus bullet. Generally speaking, the heavier bullet will normally produce more recoil. Unless it's a reduced load, or something like that.
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Yes, charge weight counts a little bit, but Velocity affects recoil far more than charge weight of powder
 
canuck4570 said:
you got it
top velocity with 200 gr in 308 winchester is around 2400 fps and top for 130 gr. is 3300
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Not sure if it's an ESL problem kinda thing here, or you don't want to read and understand post #12, but top potential velocity for a 200 grain bullet is just shy of 2600 fps according to Hodgdon info. I realize you tried using an average to bring that down and somehow? bolster your claim, but that's doesn't even make sense. What's the average then for 130 grain bullets, or do I need to go calculate that myself to show you're out to lunch on that as well?

I guess I'll go start a thread about how a 45-70 is just as powerful as a 458 Win mag. Of course, I'll have to pour all the coal to the 45-70, and download the 458 about 600 fps, and hey, I bet they'll be equal too!!!:ROFLMAO::ROFLMAO::ROFLMAO:
 
saskgunowner101 said:
Not sure if it's an ESL problem kinda thing here, or you don't want to read and understand post #12, but top potential velocity for a 200 grain bullet is just shy of 2600 fps according to Hodgdon info. I realize you tried using an average to bring that down and somehow? bolster your claim, but that's doesn't even make sense. What's the average then for 130 grain bullets, or do I need to go calculate that myself to show you're out to lunch on that as well?

I guess I'll go start a thread about how a 45-70 is just as powerful as a 458 Win mag. Of course, I'll have to pour all the coal to the 45-70, and download the 458 about 600 fps, and hey, I bet they'll be equal too!!!:ROFLMAO::ROFLMAO::ROFLMAO:
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yes there are just a couple of load but most of the load data on Hudon are around 2400 fps
just check the 200 at 2500 and there is only 2.5 pounds difference in recoil not much
 
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canuck4570 said:
yes but the difference is so little I doubt the recoil difference will be felt
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Oh you will feel a difference. It's not the absolute energy number that is important, but the recoil impulse over time.

A lightweight bullet will produce a short-sharp recoil that you will perceive as being fairly light. The heavier bullet will produce a much longer duration thump that you will perceive as being heavier.


dan belisle said:
Trust me, you'll feel the difference. - dan
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Yes he will.
 
Two things to consider: does the recoil equation not involve the square of velocity?; and the weight of the powder charge is included.

So using the example, and assuming a powder charge of 45 grs, it's not really a 200 gr bullet vs a 130 gr bullet (54% more weight), it's a 245 gr load vs a 175 gr load (40% more weight). That means that if you can push the 130 grs bullet just 18.3% faster than the 200 gr bullet, you'll have equal recoil. e.g. 2600 fps for the 200 gr and 3100 for the 130 gr.
 
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Felt recoil has more to do with the pulse frequency of the bullet , which can be seen on a graph.
More importantly though, it is what is transmitted to the shooter.
As a prone shooter, I can verify that a 200 grain bullet most certainly has more felt recoil than a 150, no matter what chart, graph, or formula is used!
Cat
 
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