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winchester model 70 bolt

bowmasterbowmaster Member Posts: 7 ✭✭
edited January 2007 in Ask the Experts
will a bolt from a winchester model 70 in 270 cal. fit and work in a winchester model 70 in 300win mag?

thanks
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Comments

  • Old FoolOld Fool Member Posts: 1,502 ✭✭✭✭✭
    edited November -1
    The .270 ctg head dia. is .473 (same as the .308, .30-06, etc) while the ctg head dia for the 300WM is .532, so it does not appear that the swap would work.
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  • bowmasterbowmaster Member Posts: 7 ✭✭
    edited November -1
    thank you for the info.
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  • nononsensenononsense Member Posts: 10,928 ✭✭✭✭
    edited November -1
    bowmaster,

    I needed a break so I thought I would put down a couple of observations on your question.

    There are two types of Winchester Model 70's:

    <Pre-'64 Controlled Round feed with exterior claw extractor cone breech

    <Post-'64 Push Feed clip-type extractor in bolt lug flat breech

    Bolts from one type action will not fit and work in the opposite action. Bolts from the same type of action and action length will work together but you need to make sure that the bolt face diameters are correct. In essence, if you use Pre-'64 bolts in Pre-'64 actions the bolts interchange however the .270 Win. boltface won't pick up the .300 WM rim. Winchester didn't CNC align threading either so the headspace will most likely be wrong as well.

    Best.
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  • bowmasterbowmaster Member Posts: 7 ✭✭
    edited November -1
    i have the Post-'64 Controlled Round feed with exterior claw extractor cone breech that is both on my winchester model 70 rifle`s in the 270 and the 300win mag.both bolts look the same.the bolt from the 270 fits in the 300win and locks up.if i would put both bolts on the table you can not tell the difference.the only thing that might not work is that the rim dia. might be different in size.
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  • jabronij3jabronij3 Member Posts: 4,686
    edited November -1
    quote:Originally posted by bowmaster
    i have the Post-'64 Controlled Round feed with exterior claw extractor cone breech that is both on my winchester model 70 rifle`s in the 270 and the 300win mag.both bolts look the same.the bolt from the 270 fits in the 300win and locks up.if i would put both bolts on the table you can not tell the difference.the only thing that might not work is that the rim dia. might be different in size.
    must be a classic model
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  • bowmasterbowmaster Member Posts: 7 ✭✭
    edited November -1
    yes they are both classic in stainless.
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