Factory ammo speed : the reality

1899 said:
Is the .300 Wby a misprint???
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todbartell said:
no. That was measured with Labradar. Crazy eh
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See, all this time Douglas was right.

I don't shoot much factory ammo, but I did chronograph some Federal Power Shok 180 gr .30/06 on my Oehler 35P and only got an average of 2600 for 5 rounds from it; I broke 2800 with my 180 gr handloads on that same outing, so I don't think the instrument was reading low. I will say that the round to round velocity of this particular ammo was extremely uniform, less than 10 fps variation for the 5 rounds I checked. I'd expect to see some velocity variation between various lots of ammunition from any particular manufacturer, so despite the low readings I got with that batch of .30/06, your measurements seem to suggest that the ammo companies don't fudge their numbers like they did at one time.
 
There’s some serious shenanigans with factory 30-30 specs. They must use 26” barrels to check them ! :)

It’s one of the reasons 7.62x39/30-30 comparisons are quite valid. Lots of deer get shot with 30-30 ammo that is dribbling out the barrel at 2000 FPS or less!
 
adamthebad said:
what about powder....from what Hornady reload book has for recipes powders are supposed to have a say in speeds and accuracy...yes?? no??
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that applies to their barrel and chamber, they don't know if you have a 16" barrel with 10,000 rounds down it, in a long head space loose chamber, or a new match 26" barrel and tight sammi chamber. it is a starting point for your load development. don't exceed their max.
 
Gatehouse said:
There’s some serious shenanigans with factory 30-30 specs. They must use 26” barrels to check them ! :)

It’s one of the reasons 7.62x39/30-30 comparisons are quite valid. Lots of deer get shot with 30-30 ammo that is dribbling out the barrel at 2000 FPS or less!
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I dunno, the only factory 30WCf I've chrono'ed I the Remington 170 grain stuff, it was doing 2140 (2200 claimed) from a typical post-64 carbine.
 
1-trident-1 said:
that applies to their barrel and chamber, they don't know if you have a 16" barrel with 10,000 rounds down it, in a long head space loose chamber, or a new match 26" barrel and tight sammi chamber. it is a starting point for your load development. don't exceed their max.
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the one i have says Lilja 24 barrel and gives all the variances with different powders....and some powders are not attainable in canada.

and thanks! i dont reload my own. My father used to...i have to find someone for that.
 
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Thanks for posting. Sound info is not always easy to find and takes time to collect and post. Anyone who thinks reading it is a waste should be grown up enough to move on instead of criticize.
 
6mm Rem, Remington 100gr CorLokt ~ 3100 fps claimed
24" Ruger 77 ~ 3104 fps

I have found pretty much this same result from my 24" M77V with this ammo.
But add the extra 2" in the #1B and almost to 3150.

Thanks for posting. Lots of work there!
 
Boomer said:
See, all this time Douglas was right.

I don't shoot much factory ammo, but I did chronograph some Federal Power Shok 180 gr .30/06 on my Oehler 35P and only got an average of 2600 for 5 rounds from it; I broke 2800 with my 180 gr handloads on that same outing, so I don't think the instrument was reading low. I will say that the round to round velocity of this particular ammo was extremely uniform, less than 10 fps variation for the 5 rounds I checked. I'd expect to see some velocity variation between various lots of ammunition from any particular manufacturer, so despite the low readings I got with that batch of .30/06, your measurements seem to suggest that the ammo companies don't fudge their numbers like they did at one time.
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Douglas was right a lot. ;)

It's probably just my perverse imagination; but I'm imagining the campfire conversation where the 2400 fps 30-06 factory guy (or moderation in all things handloader, or 308 guy) trotted out that old "no animal can tell 100 fps argument". How about a thousand then?:)
 
I was thinking the same thing yesterday. It’s not hard to get from the 30-30 to the 300-378WB in the 100fps steps that are regularly scoffed at.
 
Wow, lots of typing...more patience than I have, lol...
The Labradar is a game changer as it’s so easy to setup and run, for me the old chrono’s were a day project but with the Labradar every shot is captured data.
But the data you presented is only of real value to you, the gun you used,in the location performed and within the weather conditions of that day.
-Different identical barrels will never mirror performance exactly the same.
-We really know next to nothing on the data published on the box.
-Environmental conditions such as elevation, barometric pressure, temperature, etc play a huge role in obtained data.
The only true value I see in this is to educate people who don’t use chrono’s and want to believe the box data while hunting at distance.
Good topic, thanks for the effort.
 
emerson said:
Thanks for posting. Sound info is not always easy to find and takes time to collect and post. Anyone who thinks reading it is a waste should be grown up enough to move on instead of criticize.
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Referring specifically to the time to read velocity results from 16", 18", 20" barrels as related to manufacturers claimed velocities... pointless... hey, JMO... you know what they say about opinions...
 
hoytcanon said:
Referring specifically to the time to read velocity results from 16", 18", 20" barrels as related to manufacturers claimed velocities... pointless... hey, JMO... you know what they say about opinions...
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I find it useful because I have 7 1/2”, 12”, 14”, 20”, 22, and 24” barrels on various center fire guns. I’m always interested in others results with various length barrels and how the compare with my results, especially if I compare velocity’s before and after shortening barrel, or 2 same caliber factor guns with different barrel lengths. Your tastes are clearly stated by your posts over the years, but not everyone’s are the same. Tod isn’t some ballistic clown and hacking on the guy because you don’t care about what he is posting seems is a bit petty.
 
emerson said:
I find it useful because I have 7 1/2”, 12”, 14”, 20”, 22, and 24” barrels on various center fire guns. I’m always interested in others results with various length barrels and how the compare with my results, especially if I compare velocity’s before and after shortening barrel, or 2 same caliber factor guns with different barrel lengths. Your tastes are clearly stated by your posts over the years, but not everyone’s are the same. Tod isn’t some ballistic clown and hacking on the guy because you don’t care about what he is posting seems is a bit petty.
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The "suggestion" of a velocity comparison without the harmonization of methodology and components is misleading... my opinion, you are welcome to your own.

As far as the info in general... it stands on it's own and is useful for anyone with similar equipment.
 
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