  | 257 Roberts improved |
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03-11-2008, 03:32 AM
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Silver Member
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Join Date: Jul 2007
Location: Idaho
Posts: 360
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257 Roberts improved
Just got a 257 Roberts to go shooting with. Plan on using it on varmints and up to whitetail and pronghorn size animals.
Could use some reloading data for a varmint size game and deer size the
loads would be under 300 yards. Open country hunting in desert lands.
Thanks...
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03-20-2008, 11:55 AM
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Junior Member
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Join Date: May 2006
Location: Southern Kalifornia
Posts: 24
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I load 100 grain Nosler BT over VN-160 at about 3,000 FPS, in my Sako- 75. Seems to work very well on on Whitetail. They never seem to move more than 10' once hit.
Michael
__________________
When I Die I Fear My Wife Will Sell My Gear For What I Told Her I Paid For It.
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03-22-2008, 12:34 AM
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Silver Member
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Join Date: Jan 2008
Location: Central Az.
Posts: 152
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I run 48gn of IMR-4350 with the Nosler BT and get close to 3200fps out of mine. Spark them with Fed210GM primers. Shot a 180lb Whitetail at about 300yds and it only took one step and then hit the ground. This load is just under max in warm weather in my rifle, so approach with caution.
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03-22-2008, 12:42 AM
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Silver Member
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Join Date: Jan 2008
Location: Central Az.
Posts: 152
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By the way, which version of "improved" do you have, the RCBS or the A.I. ? The Rcbs has a 28deg. shoulder I believe while the A.I. version has a 40 deg shoulder. You will probably run into pressure signs faster with the RCBS version. Mine is the A.I. version. Hornady, Sierra, and Nosler all have some load info in their manuals. Hornady is the RCBS version and the others are the A.I. version. Good Luck.
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03-24-2008, 06:28 AM
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Silver Member
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Join Date: Jul 2007
Location: Idaho
Posts: 360
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Tap, Thank you the information one of my choices.
Just bought some brass the other day will find out
more information....
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03-31-2008, 08:48 PM
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Silver Member
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Join Date: Jan 2008
Location: Central Az.
Posts: 152
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Let me know how it works out for you.
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04-03-2008, 09:54 AM
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Gold Member
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Join Date: Jan 2008
Posts: 697
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I shoot a 25-06 and the 257 Bob IMP is close in velocity. As for deer bullets I really like the 117 Sierra. I very seldom have a deer move out of it's tracks when hit with it in the front shoulder. As for varmint bullets the 87 gr. Sierra is a bomb on groundhogs. These bullets are very accurate for me and they cost about half what the Nosler BT's do. As for powders everything I read says one of the 4350's or 4831 for you Bob IMP. There is just something special about most any .257 caliber rifle and DRIT killing of deer.
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