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.257 Bob Velocity?
#5547136
01/16/15 08:25 PM
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Joined: Jul 2008
Posts: 122
aggie-01
OP
Woodsman
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OP
Woodsman
Joined: Jul 2008
Posts: 122 |
I was wondering if anyone had an estimate on the velocities that I am getting out of these loads. I dont have access to a chrony. They are all very accurate out of my rifle. Below are the specifics. Rem 722 .257 Roberts OAL 2.833 Win LR primer
1)Sierra 87gr Spitzer 42gr IMR4350
2)Sierra 87gr Spitzer 46gr IMR 4350
3)Sierra 100gr Spitzer 43gr IMR 4350
4)Sierra 117gr SPBT 43gr IMR 4350
Thanks for the help
Mitch
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Re: .257 Bob Velocity?
[Re: aggie-01]
#5547153
01/16/15 08:39 PM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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Re: .257 Bob Velocity?
[Re: aggie-01]
#5547155
01/16/15 08:41 PM
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Joined: Jul 2008
Posts: 122
aggie-01
OP
Woodsman
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OP
Woodsman
Joined: Jul 2008
Posts: 122 |
Not sure but I will need to look when I get home.
Mitch
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Re: .257 Bob Velocity?
[Re: aggie-01]
#5547196
01/16/15 09:02 PM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
Below are the specifics. Rem 722 .257 Roberts OAL 2.833 Win LR primer
1)Sierra 87gr Spitzer 42gr IMR4350 2790fps
2)Sierra 87gr Spitzer 46gr IMR 4350 3063fps
3)Sierra 100gr Spitzer 43gr IMR 4350 2839fps
4)Sierra 117gr SPBT 43gr IMR 4350 2800fps
Velocities calculated with internal ballistic calculator with barrel length of 22 inches. Your mileage may and probably will vary, depends a lot on fast barrel or slow barrel. Have seen that software be spot on or off by 100 or more fps. The best way to know for sure is a chronograph.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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