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2/11/2004 7:54:25 AM EDT
I'm trying to get a HBAR barrel recontoured to SPR profile.  Anybody out there know the dimensions of a SPR barrel?
2/11/2004 1:50:33 PM EDT
[#1]
Somewhere in the vicinity of 0.8 to 0.85 inches, rumor has it.
2/11/2004 4:09:32 PM EDT
[#2]
Ask MSTN.
2/11/2004 4:11:51 PM EDT
[#3]
I KNEW someone would say that.

I would, except he's at SHOT and I'm in a hurry to get an answer [:)]
2/11/2004 4:21:37 PM EDT
[#4]
Even if you asked him, I doubt he'd tell you.

It's really no secret. Not sure why it's a big deal. Anyone with a barrel can measure.

Under the handguards it's ~0.820".
2/11/2004 4:22:42 PM EDT
[#5]
Plus he won't say.
2/11/2004 4:39:39 PM EDT
[#6]
I asked the guy who builds them for CRANE, and he said he was asked not to publish any of the specifics. It's nothing fancy though. If someone with one of the clone barrels wants to measure one - you'll have the specs.
Or, if you just want a clone barrel, my next batch from White Oak will be to true SPR specs.
2/11/2004 5:00:50 PM EDT
[#7]
Brouhaha,

I will bring the Crane SPR upper over tonight or tomorrow night and you can use the calipers.
2/11/2004 5:42:39 PM EDT
[#8]
It measures .725 close to the front of the barrel.After the step it is .750. I believe that it stays this way the rest of the length of the barrel. I dont have the SPR in front of me right now so I cannot say for sure. I bought everything from Paul and Wes at MSTN and am very pleased with the qaulity and service of the topend. I would not be getting on their case for info they may not want to release. If CRANE does not want to publicly say, then maybe MSTN has their own reasons for not saying.
2/11/2004 5:55:53 PM EDT
[#9]
I am sure that if the Taliban finds out the dimensions, they will be able to work up a spell to make them immune to the SPRs bullets, and that is why they cant tell us.
2/11/2004 6:13:11 PM EDT
[#10]

I dont have the SPR in front of me right now so I cannot say for sure. I bought everything from Paul and Wes at MSTN and am very pleased with the qaulity and service of the topend. I would not be getting on their case for info they may not want to release. If CRANE does not want to publicly say, then maybe MSTN has their own reasons for not saying.
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Mystery is good for marketing:-)
While your at it, stick a rod w/brass brush and post the "secret" twist rate.
2/11/2004 6:38:27 PM EDT
[#11]
The twist rate is 1 in 7.0015!! LOL.
2/11/2004 6:44:41 PM EDT
[#12]
Quoted:
I'm trying to get a HBAR barrel recontoured to SPR profile.  Anybody out there know the dimensions of a SPR barrel?
View Quote


why?
2/11/2004 7:01:12 PM EDT
[#13]
Quoted:
Quoted:
I'm trying to get a HBAR barrel recontoured to SPR profile.  Anybody out there know the dimensions of a SPR barrel?
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why?
View Quote


Because I can.  Therefore I choose to.

Not to mention that a .820" barrel is a hell of a lot lighter than a HBAR (.980" - .845").
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