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Joined: Oct 2013
Posts: 2,044
Campfire Regular
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Campfire Regular
Joined: Oct 2013
Posts: 2,044 |
The stability factor for that Hammer 75grain, 0.900" long at 3000fps in a 1:14 calculates to less than 1.0 (0.984), so from a calculation aspect does not sound like it will work. What is the calculation to determine the stability factor? What constitutes an excellent/mediocre/poor score? Scroll to the bottom of this link: http://www.jbmballistics.com/ballistics/calculators/calculators.shtml
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Joined: Aug 2012
Posts: 397
Campfire Member
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Campfire Member
Joined: Aug 2012
Posts: 397 |
There are no absolutes when it comes to bullet lengths making a difference in a 1:14" twist. You can have two rifles with measured accurately 1:14" barrels and one will shoot a longer bullet better than the other.
My Dad had a rifle with a barrel that measured 1:14" twist that stabilized the Hornady 117 gr Interlock round nose and he dumped many a whitetails with it. I just happen to have a couple of those bullets and they measure .967".
100 gr Speer HotCor shot well in a couple of my 1:14" twist rifles, but not in others. They measure .937-.940".
Sierra 90 gr HPBT shot well in the 1:14" twist, except for one. .908" (most accurate of any bullet used)
Some years back, a friend of mine gave me some Remington 100 gr CoreLokt's to try and they stabilized in the 1:14" twist rifles I had at the time. .928"
Sierra 100 gr SP bullets did not stabilize in any of my rifles. .956"
Life is simple now with either 1:10" or 1:14" twist rifles shooting the 87 gr Speer HotCor's. .835-.840" I guess this applies to your point as well: I have a 1915 mfg. 250-3000 with an approx. 1-14 twist that shoots the 100 grain Speer OK, but has been much more accurate with the (discontinued?) 100 grain Sierra ProHunter.
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Joined: Jun 2004
Posts: 44,921 Likes: 16
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 44,921 Likes: 16 |
On top of that it wouldn't surprise me if a Sierra out shot a similar Speer in most circumstances.
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Joined: Nov 2013
Posts: 3,496
Campfire Tracker
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Campfire Tracker
Joined: Nov 2013
Posts: 3,496 |
Has anyone ever measured a bullet of vintage Savage 87gr. ?
Or, dissected a vintage Savage 250 round? Case size? Powder?
How does a vintage Savage round stack up to current reloads?
Last edited by Southern_WI_Savage; 10/15/22.
"Every day above ground is a good day."
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Joined: Nov 2005
Posts: 23,159 Likes: 6
Campfire Ranger
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Campfire Ranger
Joined: Nov 2005
Posts: 23,159 Likes: 6 |
Good question. I don't have any vintage factory rounds or I would sacrifice one.
"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty
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Joined: Nov 2013
Posts: 3,496
Campfire Tracker
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Campfire Tracker
Joined: Nov 2013
Posts: 3,496 |
Good question. I don't have any vintage factory rounds or I would sacrifice one. We’ll I do and I’ll send some if you are willing to do the honors. ??
"Every day above ground is a good day."
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Joined: Aug 2004
Posts: 28,265 Likes: 3
Campfire Ranger
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OP
Campfire Ranger
Joined: Aug 2004
Posts: 28,265 Likes: 3 |
Good question. I don't have any vintage factory rounds or I would sacrifice one. We’ll I do and I’ll send some if you are willing to do the honors. ?? Look forward to that.
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