Range Report Factory ammo listed muzzle velocity?

[MH64]

So I do not reload.
At some point I will down the road.

But for now I buy and use factory ammo.
.226/5.56
.270
.308/7.62

So most of the boxes of ammo from Federal, Winchester, Hornady and even PPU list a muzzle velocity. However, I dont see the barrel length listed.
Is there a standard barrel length for factory ammo? Does it vary by maker and caliber?

.270is a 700 Sendero with a 26" barrel
.223/5.56 various AR15's and a SCAR16 with 11.5" and 16" barrels
.308/7.62 SCAR17 with 16", FAL's with 16" and 22" and 700 SPS with 20" barrels

So using various factory ammo and some ballistic apps, knowing the proper muzle velocity would help for various calibers.

 

[hornet shooter]

Re: Factory ammo listed muzzle velocity?

Not trying to be a dick here but get a chrono. Otherwise you are just pissing in the wind. Every barrel is different even if they are the same length.

 

[MH64]

Re: Factory ammo listed muzzle velocity?

Dont have a chrono, but was thinking that I might need to get one for this kind of info.

Man this is getting to be an expensive hobby!

 

[gstaylorg]

Re: Factory ammo listed muzzle velocity?

Standard test barrel length for factory ammo MV is 24". However, as stated above, your values may differ substantially depending on other factors. Best to determine MV yourself for your specific setup.

 

[winxp_man]

Re: Factory ammo listed muzzle velocity?

Shooting from a SPS Tac with 20" barrel the 168 FGMM factory ammo will be going out around 2530-50 FPS. They say about 20 FPS per inch of barrel.






Aron-

 

[culater]

Re: Factory ammo listed muzzle velocity?

If you are not buying in bulk of the same lot # you are wasting money also.Each lot # will shoot at different speed and will piss you off at the range

.If you are going long range with your stuff.Chrongraph this and find out! You ll be on a reloading bench in know time.

As far as this is getting to be an expensive hobby!
Go BIG or GO HOME!!!

 

[Greg Langelius *]

Re: Factory ammo listed muzzle velocity?

At its simplest, if data is presented, it is representative of a specific set of rifle specs.

While this will almost always be different from your own rifle, the manufacturer has a vested interest in that data being at least similar to the common denominator.

It can be used as a ballpark indicator of the ammo's performance; just don't expect it to be predictive to smaller decrees of accuracy.

Greg