Center bore to sight line ?
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HickNTX
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Center bore to sight line ?
Can someone tell me the distance from center bore to sight line on a 92 Rossi.357 ?
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HickNTX
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Sarge
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Re: Center bore to sight line ?
I have always just unloaded the gun, opened the action and used a micrometer to measure from the top of the front sight to the 'close as I can hold' center of the bore. The only .35 around here is an old Marlin, so I can't help you much beyond that.
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Archer
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Re: Center bore to sight line ?
Understand there's some estimation involved:
Rossi 92 Braztech 20" round barrel blued finish w/ factory sights.
Front sight height from barrel OML = .4"
Barrel OML DIA = .661" @ Front sight dovetail
-> ~=.7305" from top of the brass bead to the centerline of the bore.
Your sight line isn't necessarily a straight offset from the bore...
Rossi 92 Braztech 20" round barrel blued finish w/ factory sights.
Front sight height from barrel OML = .4"
Barrel OML DIA = .661" @ Front sight dovetail
-> ~=.7305" from top of the brass bead to the centerline of the bore.
Your sight line isn't necessarily a straight offset from the bore...
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GasGuzzler
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Re: Center bore to sight line ?
...and the barrels are tapered.
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HickNTX
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Re: Center bore to sight line ?
Thanks for the responses….lost my calipers at work…been trying to measure with a tape.
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Archer
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Re: Center bore to sight line ?
That was why I specified at the front sight.GasGuzzler wrote:...and the barrels are tapered.
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Archer
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Re: Center bore to sight line ?
Engineering scale for the sight height.HickNTX wrote:Thanks for the responses….lost my calipers at work…been trying to measure with a tape.
Caliper measurement for the barrel dia.
I've got several of the engineering scales but I typically keep a 6" one in the caliper case so if that walks off then both are missing. One caliper for work and another inexpensive one for the reloading bench/home use.
Had to teach a young engineer how to use a dial caliper a couple years ago. After she learned how she didn't care much for the digital ones.
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Reese-Mo
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Re: Center bore to sight line ?
Love it! You would have really spoiled her breakfast with a set of verniers......Archer wrote:HickNTX wrote: Had to teach a young engineer how to use a dial caliper a couple years ago. After she learned how she didn't care much for the digital ones.
To drift a bit.... I've got a set of coolant proof, super spiffy, solar powered Mitutoyo calipers, and still go for the plain and simple Tesa/Etalon dial. Plus, the little horsie reminds me of Colt. But, for online photos, I grab the digital - because it seems nobody can read a dial these days. Fuggetabout a vernier scale.