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Old 04-19-2005, 05:57 AM
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BigMike
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Arrow .22LR Chamber Dimensions

By popular request:

.22LR Chamber Dimensions:

Type______Length__Mouth Dia._Throat Dia._Taper @ Throat
Sporting____0.7751"____0.2307"____0.2270"
Bentz______0.6900"____0.2270"____0.2255"_____1.5 Taper
Match _____0.6876"____0.2267"____0.2248"
Win 52-D___0.5800"____0.2278"____0.2248"_____2.0 Taper

The "Ruger" 10/22 factory chamber is the "Sporting" chamber above.
The "Bentz" chamber is the 'match' chamber for semi-autos.
The "Match" chamber is for bolt actions.
The "Win M52-D" is a bolt action target rifle.

.22 Long Rifle Headspace: .0425" GO // .045" NO-GO


`

BigMike
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Old 04-19-2005, 06:40 AM
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Mike, your database knowledge base is simply astounding!
Thanks for the post.
Paul
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