I have a Winchester Model 70, chambered in 7mm Rem Mag. It has the "W" on the black synthetic stock and no floor plate. S/N 2400xxx. I was wondering if anyone might be able to help me find the manufacturer specs on rate of twist?
Winchester Model 70 question
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I don't have one with me, but its the exact same as the one in the link.
Winchester Model 70 Synthetic 7mm Mag Cal with ... for sale
Winchester Model 70 with black synthetic stock, 7mm Remington Magnum caliber, with Bushnell 4-12 AO scope. This Winchester is in excellent condition.<br /...
www.gunsamerica.com
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If you look at the discontinued section, https://www.winchesterguns.com/products/rifles/model-70/past.html, the picture you provided seems to be either a Pro Shadow or Black Shadow, both of which are 1:9.5" twist.
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Whinchester number system is a little screwed up IMHO. In 1969 they were supposedly started with "G"xxx xxx yet I have a rifles in 1992 with Gxx xxx. It is Push Round Feed, meaning sometimes in 1968. But they might have offered some cheaper models when the CRF was re-introduced.
Does it have anything else stamped on it? Picture of the writing on the barrel when you can.
I agree with xsn10s, most likely twist is 9.5 but its is to check with a cleaning rod.
Does it have anything else stamped on it? Picture of the writing on the barrel when you can.
I agree with xsn10s, most likely twist is 9.5 but its is to check with a cleaning rod.
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8x68s
Well-Known Member
I have a twist rate chart showing that 7mm mag in a Winchester is 1:9.25
Friend of mine has the same rifle, bought it new around 2002-2004. Not sure on twist but his shoots well with 160 grain Accubonds.
Mine shoots the accubonds well too, but given the availability of accubonds and RL-22 I have to go to the drawing board.
sable tireur
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Here is the list of factory twist rates by cartridge:
7mm Remington Magnum - 1 in 9" Husqvarna; Remington 40-XB, 700 (1969); Magnum Research Mountain Eagle; Thompson/Center Ri§ e
7mm Remington Mag. - 1 in 9 1/4" Remington 700
7mm Remington Mag. - 1 in 9 1/4" Savage 110, 111, 112, 114, 116; Sako; Winchester 70, 770; Ruger 1, 77 (old); Mossberg; Browning A-Bolt II, 81 BLR; Weatherby
Mark V 7mm Remington Mag. - 1 in 9 1/2" Ruger (present); Savage (present) 7mm Remington Mag. - 1 in 10" .Browning; FN; Harrington & Richardson 300; Musketeer; Schultz & Larsen; Browning BAR Mark II;Weatherby Vanguard
7mm Remington Magnum - 1 in 9" Husqvarna; Remington 40-XB, 700 (1969); Magnum Research Mountain Eagle; Thompson/Center Ri§ e
7mm Remington Mag. - 1 in 9 1/4" Remington 700
7mm Remington Mag. - 1 in 9 1/4" Savage 110, 111, 112, 114, 116; Sako; Winchester 70, 770; Ruger 1, 77 (old); Mossberg; Browning A-Bolt II, 81 BLR; Weatherby
Mark V 7mm Remington Mag. - 1 in 9 1/2" Ruger (present); Savage (present) 7mm Remington Mag. - 1 in 10" .Browning; FN; Harrington & Richardson 300; Musketeer; Schultz & Larsen; Browning BAR Mark II;Weatherby Vanguard
I can not say for sure about the push round feed (his model is push round), but all the Control round feed 7mm RM are 9 1/2 twist. I can show you the listing from Winchester or you are welcome to measure it in my rifle.
Best way is to measure
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