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Estimated velocity for 7mm/08?
#8446610
11/12/21 07:03 PM
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Joined: Dec 2012
Posts: 119
corps2010
OP
Woodsman
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OP
Woodsman
Joined: Dec 2012
Posts: 119 |
Can somebody give me an estimated velocity I would be getting with the new ammo I just purchased? ( I don't have a chrono)
Specs:
7mm/08 Copper Creek 162 grain ELD-X w/ Lapua brass Carbon Six 18" barrel with 1:9 twist Shooting suppressed with Omega 30 Can
Not sure what other info you might need, but let me know.
Thanks,
Ryan
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8446657
11/12/21 07:32 PM
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Joined: May 2016
Posts: 352
cblackall
Bird Dog
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Bird Dog
Joined: May 2016
Posts: 352 |
[align:left][/align]Way too many variables, but if I had to give an optimistic guesstimate based on your info, I’d say somewhere in the ballpark of 2575-2600 on the higher end. That’s assuming a bolt rifle, and I would lean towards the lower end. There again, no way to know for sure until you verify it through shooting over a chrono or at distance.
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8446662
11/12/21 07:37 PM
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Joined: Oct 2004
Posts: 39,549
redchevy
THF Celebrity
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THF Celebrity
Joined: Oct 2004
Posts: 39,549 |
Bet firemanJG can get you pretty close, sounds about right up his alley.
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8446671
11/12/21 07:43 PM
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Joined: Feb 2015
Posts: 5,166
flintknapper
THF Trophy Hunter
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THF Trophy Hunter
Joined: Feb 2015
Posts: 5,166 |
Having no idea what propellant and charge was used....its difficult to make a good guess.
But your barrel length (18") is a factor. That is roughly 4" shorter than most sporter length barrels on a hunting rifle would be.
Still....I would think you'd be in the low to mid 2600 fps range. If you can find out what powder was used, the charge and COAL I can run it through QuickLoad and give you an estimate that way.
Spartans ask not...how many, but where!
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8446672
11/12/21 07:44 PM
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Joined: Jan 2009
Posts: 19,253
Judd
#1 Creedmoor Fan
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#1 Creedmoor Fan
Joined: Jan 2009
Posts: 19,253 |
2450 ish will likely get you on target to validate your dope/speed.
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8446740
11/12/21 08:40 PM
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Joined: Oct 2009
Posts: 12,221
wp75169
THF Celebrity
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THF Celebrity
Joined: Oct 2009
Posts: 12,221 |
Lots of chronographs around here. Where are you located?
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8446741
11/12/21 08:40 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
THF Celebrity
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THF Celebrity
Joined: Dec 2008
Posts: 41,173 |
Just depends on how Copper Creek loaded it. Mine would be running about 2615 fps out of your barrel. And it is not a published max load. It's an upper node, but not maximum.
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Re: Estimated velocity for 7mm/08?
[Re: wp75169]
#8446802
11/12/21 09:49 PM
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Joined: Dec 2012
Posts: 119
corps2010
OP
Woodsman
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OP
Woodsman
Joined: Dec 2012
Posts: 119 |
Lots of chronographs around here. Where are you located? I'm in nacogdoches but I'm not a fan of borrowing other people's stuff. I may just buy me one and be done with it. Thank you tho!
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8447037
11/13/21 02:18 AM
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Joined: Jan 2011
Posts: 5,045
David Maas
THF Trophy Hunter
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THF Trophy Hunter
Joined: Jan 2011
Posts: 5,045 |
Here is their published specifications based on a 24" barrel
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Re: Estimated velocity for 7mm/08?
[Re: David Maas]
#8447444
11/13/21 05:38 PM
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Joined: Feb 2015
Posts: 5,166
flintknapper
THF Trophy Hunter
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THF Trophy Hunter
Joined: Feb 2015
Posts: 5,166 |
Here is their published specifications based on a 24" barrel Upper mid/tier load then. I load a 160 gr. Federal Trophy Bonded to just a bit over 2700 fps from a 22" barrel. (Chronographed). That is very close to a MAX load for the propellant I use. Barrel length is a decided factor for the OP.
Spartans ask not...how many, but where!
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Re: Estimated velocity for 7mm/08?
[Re: corps2010]
#8447448
11/13/21 05:39 PM
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Joined: Feb 2015
Posts: 5,166
flintknapper
THF Trophy Hunter
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THF Trophy Hunter
Joined: Feb 2015
Posts: 5,166 |
Lots of chronographs around here. Where are you located? I'm in nacogdoches but I'm not a fan of borrowing other people's stuff. I may just buy me one and be done with it. Thank you tho! I am just outside of Nac. If you want/need to borrow a chronograph I have one. Just PM me.
Spartans ask not...how many, but where!
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