precision drilling

Rifle and pistol precision drill target using the target shown below, download and print out so it fits on a standard sheet of printer paper.  Drills are written out below.

Rifle drill is fired cold, with the weapon as is.  No resighting, the two + sections are for initial shots to establish a baseline (one round each target).  The shooter uses the initial shots as references, but since any weapon which has been already sighted in should be GTG, no mechanical adjustments are allowed.  If the weapon is off zero, the shooter may use what they feel is the appropriate “Kentucky windage” to engage the targets. Fire one round for each target number, and your score exists as number of hits out of 10.  Rounds must be totally in the numbered square, any round touching or breaking the line doesn’t count.  Rounds hitting outside of the target fired at do not count ( ie shooting for #1, and hitting #2 does not count for a hit on #2).

Distance to target is whatever distance the shooter can identify the numbers.  Magnified optics will be back farther, iron sight shooters will be up closer.  Vary the distance as needed. The purpose of the drill is to know how effective you are with a particular rifle.  While it can be used for drills when already warmed up, it is most effective and honest when shot cold and with a previously sighted in weapon. 

Pistol shooting is done from 15 feet away (5 yards).  If the score is 10/10, move back to 21 feet away (7 yards) and fire again. If at 21 feet a shooter is able to hit all targets, move back to 30 feet (10 yards).  Before and after each above drill is fired, used the + and fire 5 rounds (one 5 round drill each before, one after). Check and see if your group on the + tightens up after the drill is complete.  The purpose of this drill is to know your individual possible engagement distances for small targets.  By verifying you are able to hit all ten boxes before moving back, the shooter is able to establish fired rounds are not lucky shots. 

I think I figured out one of the many reasons 1D is so amazingly good.  

Most boy-bands spend countless hours drilling precise, cheesy and downright embarrassing choreography.  One direction spent those hours becoming better singers and performers - learning how to write high quality songs - figuring out the music business, warts and all.  It all comes down to NOT dancing!


Side tool chest, strictly machining tools.

Drawer 1: height gage w/riser, squareness comparator, dial indicator stand, bench block, V-block, gage blocks, sine bar, cylinder square.

Drawer 2: ER32 collet set, .060″-.250″ gage pins, 1-2-3 blocks, 1″ machinist vise, v-blocks, collet blocks, machinist jack, slitting saw arbor, 3MT dead center, 2MT dead center, 2MT live center, collet chuck, boring head, precision keyless drill chuck.

Drawer 3: .251″-.500″ gage pins, feeler gage set.

Drawer 4: tap & die set (dies are in tray underneath taps)

Drawer 5: reamers, reamers, reamers. (this is a very expensive drawer).

Drawer 6: socket head cap screws.


The Marine Corps Silent Drill Platoon is a 24-man rifle platoon that performs a unique precision drill exhibition. This highly disciplined platoon exemplifies the professionalism associated with the United States Marine Corps.
The Silent Drill Platoon first performed in the Sunset Parades of 1948 and received such an overwhelming response that it soon became a regular part of the parades at Marine Barracks Washington, D.C.
The Marines execute a series of calculated drill movements and precise handling of their hand-polished, 10-and-one-half pound, M1 Garand rifles with fixed bayonets. The routine concludes with a unique rifle inspection sequence demonstrating elaborate rifle spins and tosses.
Semper Fidelis!


ALPINA at 50.

One of ALPINA’s signature design elements is the wheels. Here we see the development from the days of the 2002tii to today. In order to minimize the imbalance introduced into the wheel by the valve stem, ALPINA has engineered a valve stem mounted in the center hub of the wheel. Air is delivered to the tire via a very precisely drilled tube up one of the spokes (as shown in the second photo.

Very Rare Mesopotamian Rock Crystal Leopard, Proto-Sumerian Period, C. 3000 BC

This is the only Proto-Sumerian rocky crystal depiction of a leopard known and is a masterpiece of the ancient gem-carver’s craft. The superb rendering of the animal’s anatomical details, the hind thighs, the paws, the muzzle, eyes and ears, and the holes, which are lightly and very precisely drilled, and may have been inlaid with semi-precious stones, creating a decadent polychrome effect, which would have added to the already luxurious nature of this piece.