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Thread: Blow tubes

  1. #1
    Boolit Buddy Captain*Kirk's Avatar
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    Blow tubes

    Have any of you fabricated your own blow tubes for BPCR shooting, and if so, can you post pictures? The commercially available ones look like basically a piece of clear aquarium tubing attached to the rear of an empty case, to me.
    "Are you gonna pull those pistols, or whistle Dixie?"

  2. #2
    Boolit Grand Master
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    Simple and easy,have one for each BP caliber rifle drill out the primer pocket of the case and put a foot length of clear tubing in it from any hardware store
    Regards
    John

  3. #3
    Boolit Buddy Captain*Kirk's Avatar
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    Quote Originally Posted by John Boy View Post
    Simple and easy,have one for each BP caliber rifle … drill out the primer pocket of the case and put a foot length of clear tubing in it from any hardware store
    Kinda what I thought. No o-rings, etc needed to seal the breech?
    "Are you gonna pull those pistols, or whistle Dixie?"

  4. #4
    Boolit Master

    Chill Wills's Avatar
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    Quote Originally Posted by Captain*Kirk View Post
    Kinda what I thought. No o-rings, etc needed to seal the breech?
    No. No o rings needed.

    In fact, many calibers work just fine with only the correct size clear plastic tube into the chamber. Blow-tubes are basic and very effective in most situations. The big exception is very hot weather with barrel in hot sun. .... and some others.

    A great many of the national records were set with blow-tubes. They do work.
    Chill Wills

  5. #5
    Boolit Grand Master

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    If your shooting several calibers drill out the cases for a 357 case and glue these in the cases with the body out then 1 tube and the cases slide in to the tube as needed.

  6. #6
    Boolit Grand Master
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    In order not to have a wet chamber blow tubing it’s best to use a tube in a case. Wet chambers is a No No
    I bow tube when the humidity is below 40% and patch when humidity is above 40%. Moist foul is the key
    Regards
    John

  7. #7
    Boolit Master
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    Quote Originally Posted by Captain*Kirk View Post
    Have any of you fabricated your own blow tubes for BPCR shooting, and if so, can you post pictures? The commercially available ones look like basically a piece of clear aquarium tubing attached to the rear of an empty case, to me.
    That works (I turned the back of the case out to take a bigger tube = less restriction) but even simpler is a piece of tube that fits the chamber and too big for the rifling

  8. #8
    Boolit Bub
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    with a browning hiwall fed with 5744, just blowing across the action and into the barrel will keep those unburnt grains out of the trigger department.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check