Jan
You really need to take ugly lessons from Chuck Blender. That tube is way too nice. Chuck used to use an old piece of black iron gas pipe. 
  I also wish that Chuck would give stock making lessons. I’ll bet in the time I’ve known him he went through 200 lbs. of bondo. But the man could shoot.

40 Rod

40_Rod wrote on Jan 13^th, 2014 at 9:11am:


Someone must have picture or two of Mr. Blender's creation.  I would love to see it.  Double bonus for a shot with the pipe union installed.

JackHughs   

We must not forget the Chuck's pine buttplate with the lag-bolts. Ledball

boats wrote on Jan 13^th, 2014 at 5:46am:

Can't agree with that at all ... 

The best bloop tubes on the market today are made by a high power Nat Champion who started at my club and current 600 to 1000Y with match/unlimited rifles are being shot with bloopers.

If they didn't work - they sure wouldn't use them ...

I agree, I like the strength of the tube over the rail and it blocks the crap coming out of the barrel from hitting the front sight. Tubes are still also used in smallbore. JMO

JackHughs wrote on Jan 12^th, 2014 at 10:01pm:

At our NRA smallbore prone matches the top couple of shooters (who are very good and rarely shoot below 590/600) use bloop-tubes for sight extension. Several of our high power match-rifle shooters also use them for the same reason. Have never heard the second reason (wind on the bullet) mentioned prior to this thread.

[/quote]
At our NRA smallbore prone matches the top couple of shooters (who are very good and rarely shoot below 590/600) use bloop-tubes for sight extension. Several of our high power match-rifle shooters also use them for the same reason. Have never heard the second reason (wind on the bullet) mentioned prior to this thread.
[/quote]

The "wind on the bullet" theory arises from the fact that a projectile is least stable at the instant it exists the crown.  Accordingly, any wind at the crown will have a greater impact on the remainder of the projectile's flight.

Since a bloop tube will shield the projectile from the wind for 6 inches or so of travel, the wind at the crown will not have any effect on the projectile.  That's the theory, for what it's worth.

The other side of the coin it that the bloop tube does not allow the energy contained in the expanding gasses to dissipate away from the projectile.  Rather, those gasses remain contained within the tube and may actually disturb the projectile even more than the wind.

The only real evidence in favor of using a bloop tube to enhance accuracy is the fact that all competitive rimfire benchrest rifles use an end-barrel tuner.  All of these tuners are also, by virtue of their design, bloop tubes.

Again, using a bloop tube is one of those "your mileage may vary" choices.  The only way to tell for sure if a bloop tube is helpful is to try one.

Personally, my experience was a dismal failure.  However, I still have 9 1/2 feet of that plastic pipe left.  Who knows what exciting designs may yet unfold.

JackHughs     

Jeff_Schultz wrote on Jan 15^th, 2014 at 4:43pm:


I think that might be true in some cartridges, with some calibers, at shorter ranges.
Once you get farther out there, a bullet really becomes unstable as is begins to slow down.