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browning backboring

Discussion in 'Shooting Related Threads' started by torqueman, Mar 11, 2011.

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  1. torqueman

    torqueman Member

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    Mar 6, 2011
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    Does enenyone know when BRownining started backboring thier xts
    thank JOE
     
  2. KooJo

    KooJo Member

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    Jan 29, 1998
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    Go to Browning"s Web site to see if they can help with your question.
    Just a guess maybe 3-5 years, the longer frocing cone maybe 2-3 years.
     
  3. Pull & Mark

    Pull & Mark Well-Known Member

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    Brownings have been backbored since the Invector Plus chokes. Since 1992 standard I believe. The picture I have shows no forceing cone lips anymore, but the transition is only like the lenth of the brass on the shell in the chamber. So I'm guessing around 1/2-3/4 inch in the forcing cone lenth. Its been lenthened twice I think? The new vectorPro now has a 2 l/2 inch lenthened forcing cone. My 525 has a l l/2 inch. Brownings barrel bore is .742 with the VectorPro and was/is .741 +/- .003 back in 1996. Is the extra one inch long forcing cone and the extra .001 barrel opening worth it??? Browning is selling like it is. Hope this helps you out. Break-em all. Jeff
     
  4. TOOLMAKER 251

    TOOLMAKER 251 Active Member

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    Browning invector plus came out in 1989, my GTI that I bought in 1991 is invector plus.
     
  5. Pull & Mark

    Pull & Mark Well-Known Member

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    On your GTi, blue book says porting standard in 92, but invector plus standard in 90. I thought I read somewhere that it didn't become standard in all of brownings until 92. Yes it was available several years before as a option. Maybe I'll look at brownings website tomorrow and see what it says. Close enough. Break-em all. Jeff
     
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