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.
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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.
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?Quote:
Originally Posted by John Boy
No. No o rings needed.Quote:
Originally Posted by Captain*Kirk
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.
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.
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
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 riflingQuote:
Originally Posted by Captain*Kirk
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.
Someone already mentioned a simple length of a clear tube. Mine is similar. I used a piece of (long ago) clear tubing that was used to deliver cooling water. When it was made for the original purpose one end was expanded by putting the end in boiling water, pulling it out and putting it over a fitting. The result is the diameter is large enough that when I put it into a chamber I feel just a bit of resistance when it starts to go into the rifling. I can stop pushing it further then.
It is a very simple device that resulted from reuse of an old component, but it works fine.
https://i.ibb.co/b2JHFBL/20210617-080052.jpg
If you go with the snug fitting plastic tube be sure to mark the mouth end as BP fouling has a horrible taste if you get the wrong end.[smilie=1:
Yep ! that stuff will make you spit! its a good enough reason to go the extra trouble of fitting your tube to a drilled out case - guarantee if you just use a piece of clear tube you will eat the wrong end of it at some point ..................................Quote:
Originally Posted by country gent
Yes. As an owner of a blow tube pictured I confirm it is true. Guess how I found out...Quote:
Originally Posted by indian joe
I wasn't looking carefully and almost blew coffee out my nose. There' a passing resemblance to the below. Its the baculum from a raccoon.Quote:
Originally Posted by flynth
For what it is worth, yesterday I shot a Mid-range match at Cheyenne. 200y, 300, 600 yard match. I used a blow tube without cleaning all day. 42 shots in a row with no loss of accuracy. They work fine.
OH Look a single stage trigger :bigsmyl2: /EdQuote:
Originally Posted by Shanghai Jack
The 60 degree temperature, off and on rain , and high humidity sure didn't hurt anything for keeping the fouling soft either.Quote:
Originally Posted by Chill Wills
Exactly why I did it. That rifle often shows it's very best accuracy when shot with a blow tube, BUT only when the conditions allow.Quote:
Originally Posted by Don McDowell
On the other hand - Full sun on the barrel and 90F air temp. and the wiping rod would have been the rule.
I did shoot 100-6x at the 200 stage using the blow tube and you know the tough winds we shot in all day.
The more I shoot at Cheyenne, the more I'm thinking it may be the toughest range in the country to shoot on.