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Old February 6, 2013, 07:56 AM   #26
oneoldsap
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30-06 = 2800
270 wsm = 2925
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Old February 6, 2013, 11:01 AM   #27
The Baron
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30-06 - 2959
270 - 3003

These are just random guesses

Last edited by The Baron; February 6, 2013 at 11:26 AM.
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Old February 7, 2013, 06:29 PM   #28
kilotanker22
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Finally got to the range. And chronoed both guns.

The 30-06 was shooting Average of ten rounds at. 2813. The shots in order are. 2807 2817 2817 2817 and 2806. That is a high to low difference of only 11 feet per second. Not sure how to calculate SD.

The 270 wsm five shots in order were. 2940 2952 2966 2949 and 2977. High to low difference of 37 feet per second still would like to know the standard deviation. By the way that was with a 150 grain ballistic tips seated to the lands with 67 grains of magpro.

I will look through the whole thread and I will pm the winner of the bullets I promised.
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Old February 7, 2013, 06:39 PM   #29
Brian Pfleuger
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I win on the .30-06 I was only off by 1fps. I don't want the bullets though.

I believe OneOldSap would be the overall winner, if I'm not mistaken.

He's off by 13 on the 30-06 and 31 on the 270.
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Old February 7, 2013, 06:42 PM   #30
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http://www.mathsisfun.com/data/stand...alculator.html
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Old February 7, 2013, 08:11 PM   #31
kilotanker22
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wow

That is a standard deviation of only 7 feet per second on the 30-06.
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Old February 7, 2013, 08:17 PM   #32
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What do I win ? Does that 30-06 load group at all , you've got a terrific SD there !
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Last edited by oneoldsap; February 7, 2013 at 08:20 PM. Reason: Even a blind squirrell finds an acorn once in a while
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Old February 8, 2013, 12:04 AM   #33
kilotanker22
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oneoldsnap

You win a box of sierra match king bullets 308 caliber in the 200 grain persuasion. If you want them that is.

And yes that load for the 30-06 groups very well. 3 shot groups hover around half an inch. That is with sierra game kings.
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Old February 8, 2013, 12:05 AM   #34
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Oh yeah forgot to add that 30-06 is a remi gton 700 adl 400 bucks at wall mart.
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Old February 8, 2013, 02:17 AM   #35
44 AMP
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too late for me to guess, but I wasn't going to anyway.

What I was going to say is that my experience with chronos and several guns and loads is that the data in the loading manuals is pretty close, and individual guns will show individual differences. I have see as much as 100fps above, and below the published data from different guns, although usually it is much less. Rarely it is spot on, but that, I think is just serendipity.
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Old February 8, 2013, 03:23 AM   #36
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The factory loads I chronoed were 150 grain power points. They were around 3150
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Old February 8, 2013, 08:48 AM   #37
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Kilotanker.. your original post said 165 grain SST's.. I call miss trial..... You wanted us to pick the velocity for SST's and you tell us now that velocity was with Sierra Gamekings!!???
Debothcery abounds!!!
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Old February 8, 2013, 11:08 AM   #38
kilotanker22
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Hooligan. I also chronod a few SST bullets out of them and the difference was negligable . The standard deviation was bigger for the SST.
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Old February 8, 2013, 04:22 PM   #39
oneoldsap
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A prize ? A shooter can't have too many .308 bullets , can he ?
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Old February 8, 2013, 07:21 PM   #40
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oneoldsap

Yes a prize so to speak at the beginning of this thread I offered them to the person who was closest.
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Old February 11, 2013, 08:58 PM   #41
Pathfinder45
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There are two kinds.....

......of shooters with chronographs: Those who have shot their chronographs, .....and those who will!
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Old February 11, 2013, 10:56 PM   #42
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I like your enthusiasm pathfinder. All I can say is I try to make certain that I shoot through the upper half of the screens. And the forward table is not as tall
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