March 28th, 2015

That’s Precision: 10 Shots in 0.29 MOA — with a Pistol!

Report by Boyd Allen
This pistol belongs to Dan Lutke, a Bay Area benchrest shooter who publishes the results for the Visalia matches to the competitors and the NBRSA. He has been an enthusiastic competitor for an number of years, at various ranges, notably Visalia and Sacramento. The action is a Remington XP-100, to which a Kelbly 2 oz. trigger has been fitted. On top is an old Japanese-made Tasco 36X scope (these were actually pretty darn good). The Hart barrel (a cast-off from Dan’s Unlimited rail gun) was shortened and re-chambered for the 6x45mm, a wildcat made by necking-up the .223 Remington parent case. The custom stock/chassis was CNC-machined by Joe Updike from 6061 Billet Aluminum to fit the XP-100 action and mount a target-style AR grip with bottom hand rest. The gun was bedded and assembled by Mel Iwatsubu. In his XP-100 pistol, Dan shoots 65gr custom boat-tails with Benchmark powder.

XP100 target pistol 6x45 6x45mm benchrest

TEN Shots in 0.303″ (0.289 MOA) at 100 Yards
How does Dan’s XP-100 pistol shoot? Look at that target showing TEN shots at 100 yards, with eight (8) shots in the main cluster at the top. The ten-shot group measures .303″ (0.289 MOA), as calculated with OnTarget Software. Not bad for a handgun! What do you think, can your best-shooting rifle match the 10-shot accuracy of this XP-100 pistol?

XP100 target pistol 6x45 6x45mm benchrest

XP100 target pistol 6x45 6x45mm benchrest

This diagram shows the most common 6x45mm wildcat, which is a necked-up version of the .223 Remington parent cartridge. NOTE: The dimensions for Dan Lutke’s benchrest version of this cartridge may be slightly different.

XP100 target pistol 6x45 6x45mm benchrest
ACAD drawing by Peter Gnanapragasam CC by SA 3.0, via Wikimedia Commons. Title Added.

Story tip from Boyd Allen. We welcome reader submissions.
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March 28th, 2015

How It Works: Cut-Away Winchester Pump-Action Shotgun

Model 12 function shotgun cutaway see-through cut-away larry potterfield

Even wonder how a pump shotgun works? Then watch this fascinating video from MidwayUSA. The operation of a pump-action shotgun is illustrated with a special cut-away version of a Winchester Model 12. The shotgun has been modified to reveal the inner workings. This cut-away Model 12 still loads and ejects dummy shells, but you can see how the lugs, slides, locks, ramps, springs and other internal parts work. You’ll be amazed how complicated this old pump-gun is. (The Model 12, Winchester’s first hammerless shotgun, is one of the most popular scatterguns ever made. Over 2,000,000 were sold.)

Skip Ahead to 3:00 to See Cut-Away in Action

To see how the Model 12 works, you can skip forward to the 3:00 minute mark in the video. The first part of the video shows how the Model 12 was “sliced and diced” to expose the inner workings. Larry Potterfield of MidwayUSA explains that “the factories often used cut-aways as sales tools to show how a specific model operated”. In addition the U.S. Military used cut-aways for training purposes.

Here is the cut-away completed. Even the pump grip has been sliced to reveal the inner workings.
Model 12 function shotgun cutaway see-through cut-away larry potterfield

Here’s a close-up, showing how the bolt retracts to eject a round.
Model 12 function shotgun cutaway see-through cut-away larry potterfield

A round has been picked up from the feed tube, and then is lifted into the chamber.
Model 12 function shotgun cutaway see-through cut-away larry potterfield

Permalink - Videos, Gunsmithing 1 Comment »
March 28th, 2015

Nikon Scope Promotion — Save through April 26, 2015

Here’s a chance to save $50-$80 on a Nikon scope. These optics will work fine for a hunter or varminter. Now through April 26, 2015, shooters can save up to $80 on select Nikon PROSTAFF 7 and MONARCH 3 long-range riflescope models. PROSTAFF 7 series scopes feature a 30mm main body tube and ample elevation adjustment range. Both PROSTAFF 7 and MONARCH 3 product lines offer multi-coated lenses, a 4x zoom ratio, and spring-loaded instant zero-reset turrets. These Nikon optics are covered by Nikon’s No-Fault Policy and Limited Lifetime Warranty. CLICK for Rebate info.

Nikon long range prostaff monarch scope promotion rebate

To learn more about Nikon’s Long Range Precision promotion for PROSTAFF and MONARCH optics, visit www.nikonpromo.com.

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