Bullet weight, Powder grains and Recoil

[Mals9]

I was wondering about the difference in recoil between powder loads and bullet weight. For instance will a 150 gr bullet over 49 gr of powder have a different felt recoil as compared to a 165 gr bullet over 46 gr of powder? Will you notice the difference with the lower powder load?

Mals

 

[Jim Watson]

I don't know about YOUR combination but I can feel a difference between a 175 and 44 gr of powder and a 155 and 47 gr of powder; in favor of the latter. In a .308 that is.

If you have the muzzle velocities, there are several recoil computers on the net.
Felt recoil has been said to correlate better with recoil velocity rather than energy.

 

[243winxb]

I dont think you will notice the difference. More muzzle energy = more recoil. http://billstclair.com/energy.html

 

[Zak Smith]

Free recoil energy is proportional to: the combined inertia (m*v) of the bullet and gas from powder as it exits the muzzle, squared, divided by the rifle mass.

 

[oneounceload]

Use this calculator:

http://www.10xshooters.com/calculators/Rifle_Recoil_Calculator.htm

 

[Mals9]

Thanks for the links. This is interesting.

Mals

 

[Grump]

Yup, my .357 loads with 125-gr bullets kicked just the same as one other load with 146-gr bullets, at the same velocity.

The powder charge for the 125s was W-W 296. Total weight of bullet + powder was the same.

 

[Sunray]

A 165 will have more felt recoil because of the Third Law. That Newton fellow's law about equal and opposites.

 

[dbarnhart]

I notice a significant difference in recoil when I switch between 147gr and 168gr bullets in my 308.