Monthly Archives: September 2018

Schrifle: NeoTec Copper 365gr


After 30+ years: NOW- 12ga Performance From Your 20 Gauge Slug Gun!

“No longer just a slug gun, but not quite a rifle, it’s a Schrifle”     

Designed for use in any make SLUG GUN with a 20ga Rifled Barrel only.

Watch for another NeoTec Copper slug around 300gr.


TarHunt-Premier “NeoTec” Copper 365gr NeoTec Copper (green) slug.      “The first, RIFLE DESIGN, 20ga ammo for any make rifled barrel slug guns”!! 

Introducing  the newest 20ga Schrifle: “NeoTec Copper 365gr” bore size slug. The facts speak for themselves as seen in the accompanying photos below. Look at the real differences between the new 20ga Schrifle; the bore size NeoTec Copper 365gr (62 caliber diameter slug, before it enters the game) and the industry standard 45 caliber sabot projectile. The picture shows the actual REAL difference between a 62 caliber and the 45 caliber slug.  The 26% overall larger diameter of the NeoTec Copper 62 caliber slug vs. a 45 caliber slug is easy to see. The ratio of one to the other remains the same at any magnification.

For comparison purposes this photo shows a 1974 Kennedy .50 cent piece; next to a NeoTec Copper 365gr expanded slug that was fire into a ballistic gelatin block from between 45 and 50 yards away. That range duplicates about 70% of most deer taken with a slug gun. This NeoTec Copper 365gr expanded slug weights 302gr (an 83% weight retention) and it expanded to just over the size of a half a dollar! An expanded slug like the one shown, @1800 fps, and spinning at 54,000 rpm’s (when fired thru a 1-24 twist rate barrel), and weighting over 30 grains, acts just like a hole saw!

“The technology behind the NeoTec Copper 365gr slug”.

The NeoTec Copper series design is a example of “out of the box thinking .”  The “Hollow Bullet with Internal Structure”, patent number US 9,372,05 B2, uses a pressurized elastomer truss that is flexible enough to alow the thin side walls of the hollow copper slug to upset in size, to better fit your barrel diameter. After firing and the upset to the bore has taken place by the bullet side walls, the pressurized elastomer truss remains strong enough to support the thin copper side walls from collapsing inward while the slug is being forced thru the barrel. Correct implementation of these two events, in that order, is critical to insure proper flight requirements and the elimination of flyers. With this new “hollow bullet” design, a full bore size diameter bullet can be maintained, while greatly reducing its overall weight. Making it possible to load the same physical size bullet at higher velocities than its original full density configuration. [A solid copper bullet of the same size & shape could weigh over 750 grains]. Upon impact, the pressurized elastomer truss it allowed to rapidly expand outward thus aiding in the initial amount of fracturing of the o-jive (pointed part of the slug). The area in the nose section where the wall is the thinnest.

The “hollow bullet” design shown here uses an  full cavity elastomer truss. This design helps generate real expansion of a 99.9% pure copper bullet that will expand and not just shoot thru or implode on impact projectile [Sometime, in the near future, we will be hunting with “HOLLOW  Bullets” supported entirely by internal metal alloy truss. These projectiles will be made on a 3-D metal  printer] at even faster velocities.

The “NeoTec Copper 365gr” Premier Slug

The 365gr NeoTec Copper slug is the newest slug in the TarHunt 20ga Schrifle series. It is a high performance, full expanding, copper slug at 1800fps. It is flying at or near the same velocity as other popular sabot rounds, but it weights a full 100+ grains more!

The all new 20ga Schrifle NeoTec Copper 365 grains at 1800fps will be stable thru all known 20 gauge twist rates. The TarHunt NeoTec Copper slug is a premium full performance, bore size slug, and is on track to be largest diameter, heaviest, fastest, full expanding of all the copper slugs in the industry. While retaining as much as 85% of its original weight when used on thin skin big game. The bore size NeoTec Copper 365gr slug has a unique felt recoil. The slug generates a clock wise torque on the gun and requires two handed gun control, when testing off of a bench rest.

The 20ga Schrifle NeoTec Copper  slug will also qualify as a “Green” non-toxic projectile for the areas that require a non-toxic slug.  The current trajectory data for the 20ga Schrifle NeoTec Copper 365gr slug has been added below, next to the Raptor Alv 270gr data, so a side  by side comparison can be made. You may be surprised by the heavier slug. Only a 2″ trajectory arc, either above or below,  your aiming point, thru 150 yards when zero at the proper yardage.

Half Dollar Size Expansion, 82% Weight Retention, Flattest Shooting, More Energy Down Range.

Thank You

Thank you for your interest in the  20ga.”Schrifle”  NeoTec Copper series of  a non-sabot slug round. All orders until further notice will be shipped directly from TarHunt. The webmaster has installed a  “blue buy now” tab on the opening home page as well as a normal ordering format under the ammo tab and under the hunting ammo drop down.

Accuracy Detail

The new 20ga Schrifle: NeoTec Copper 365gr @1800fps and the Raptor Alv 270gr @1975fps slug will work thru all known 20ga twist rates. I feel the NeoTec Copper 365gr is by far the best choice for deer hunting with the 20ga Schrifle series of slugs. It is a very accurate slug, when fired in a SAAMI diameter barrel. A non-lead  (a green, non-toxic) maximum expansion slug with a high percentage of weigh retention.

Calculated trajectory:  Current indications show the 270gr Raptor Alv high performance slugs @ 1975fps may be the heaviest weight slug useable in the 1900fps +  range.    Note: the Raptor Alv 270gr data uses a 150yds zero and the drop looks much better than the 365gr Copper slug at 200yds. But look how high the mid-range trajectory is, using the 270gr**, at 100 yards and it has 16% less energy at 200yds.

Raptor Alv-lead core 270gr.**


3.07 **

150 ZERO
 -3.31       (where is your aiming point?)
-8.07      (where is your aiming point?)


Calculated trajectory:  In  comparing, the 365gr NeoTec Copper @1800fps to 270gr Raptor Alv slug @1975 fps. Notice that the NeoTec 365gr Copper shoots flatter and has more energy at 150yds.. The increased weigh makes it a much better choice for hunting thin skinned big game in the 150 thru the 200 yard range!      

“Why does the 365gr NeoTec Copper slug use a 130yd zero while the 270gr Raptor Alv slug and all brands of sabot ammo, uses a 150 yard zero”?     Notice the trajectory’s number highlighted at 50, 100, 150, and 200 yards.  When using the NeoTec Copper 365gr it means that for the first 150 yards you have a total of a 4 inch maximum variation  in your trajectory curve. In the heat of the battle that means hold center and shoot, no guessing. But look (how low) it is at 200yd. Exactly my point, at 200yds all you have to do it to lay your horizontal cross hair right on top the back bone a squeeze the trigger. The 12″ of drop will place your shot in the heart/lung area.

“No guessing”, EVEN using a scope that has just a standard cross hair.  It’s a quick way of accurately taken shots from 50 thru 200 yards when your using the Premier “Schrifle – NeoTec” slug. No confusion trying to remember which cross hair to use. Along with a slug that has the energy to get the job done at 200yds.

NeoTec Copper 365gr.

Range-yards Velocity-fps Energy-ft/lbs Trajectory-inches
0 1800 2650 -1.45
50 1618 2121 +2.10




130 ZERO 1304 1377     0.0


175 1169


 -6.54         (17% more energy @ 175yds)




-12.70       (back bone hold) – hit the heart at 200yds


From May-1, 2018 thru how ever long they lastTarHunt will release a 6-ROUND SAMPLE BOX, your choice of a of the 20ga Schrifle series:  The 270gr Raptor Alv  or the NeoTec Copper 365gr slug rounds in a generic 6-round box.     The price is $28.50  for the 270gr Raptor Alv and $32.50 for the 365gr NeoTec Copper, in a sample 6- round box +ups.

Note: The Raptor Alv in 240 grain and the Raptor Alv 260/265 grain has been discontinued. There are a few boxes of 260 grain for as long as the last.

TarHunt can be reached at: 570-784-6368 (9am-4pm)


Gel-block video

Look at this youtube video of a 8 inch square, 18 inch long, 21 pound gelatin block, (normally used to test rifle bullets). It was hit with the new, reduced load, 20ga Schrifle slug. The slug is a full bore size 62cal, 260gr. slug fired from a full 40 yards away using a 1-23tr. The lower your twist rate number (1-23tr) the more RPM”S the slug has to aid in cutting a bigger wound channel.

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The gel block reacts to the impact of the 20ga “Schrifle” by producing 9-10 different severe shock  waves patterns as the slug moves thru the 17 inches of the gel block! If you look closely you can see the Raptor HP design  separating into 3 peddles, about 120 degrees apart. The peddles then penetrated out ward for Approximately 7 inches.  At the end of the video the 21 pound block is stood up on end and is flipped off the table. The multi-shock waves, seen here in this video, of a 20ga “Schrifle”  moving thru this gel block is a good representation of the wound channel trauma produced by a 20ga “Schrifle” slug going thru a 16″ thick Deer size animal!


Two  Different Barrel Upgrades for the Savage 220

I have lost track (hundreds) of the number of Savage 220 owners I have talked to since November 2016. It has becoming obvious that some OF THE EARLY 220 Savage slug guns; may have lose barrels barrels, a poor fit into their stock, or the barrel may not be quite SAAMI spec. Some early  Savage 220 slug guns, when firing the 20ga Schrifle™ rounds are producing the same size groups as other makes of sabot ammo. When average size groups appears, usually the inside diameter of the barrel is larger than the diameter of the 20ga Schrifle™ slug. For that reason TarHunt offers a less costly 6-round sample box for testing; in addition to the normal 10-round production box.  Only testing your barrel can tell if your ready to enjoy the 20ga Schrifle series of new slug technology; NeoTec Copper (green) slug,   “The first ever, RIFLE DESIGN, ammo for rifled barrel slug guns”!!! 

The 20ga Schrifle™ cannot be made any larger in diameter to match these oversize barrels because the projectiles base is solid copper, with no plastic sabot to compress. It must fit the barrel exactly like a rifle bullet fits the bore of a center fire rifle barrel. The 20ga Schrifle™ round was designed to be fired thru a SAAMI spec rifled slug barrel! SAAMI specification for a rifled slug barrel ONLY allows for a .002ths tolerance period!

Upgrade #1:   TarHunt is offering a SAAMI spec, Stainless Steel, Premier, button rifled, matte finished barrel, in a (non-fluted) factory replacement format for the Savage 220. This SS barrel has a slightly heavier wall thickness than the factory barrel and could require a very slight stock inlet adjustment.  The #1 replacement barrel is 24 inches long with a 1-24 twist rate. It has muzzle diameter of .870ths at the end of the muzzle brake and adds approximately 1/4 pound in weight to the gun. The barrel is threaded for the Savage action and has a 3″chamberThis barrel will be set up as a “change it yourself” but it will required access to an Savage Barrel nut Wrench and a 20ga Head Space Gauge 

The #1 barrel upgrade cost is $265.00 + shipping           If needed, these installation tools will be available and sold as a set.  POR 

The #1 barrel upgrade installed by TarHunt is: $325.00 plus shipping. Glass bedding the action into a Fiberglass or wooden stocks is $65.00 extra.


The #2 barrel upgrade installed by TarHunt:  (shown in the Savage picture below and on the home page)

The Savage 220 slug gun shown there has the #2 Upgrade installed.  This #2 replacement barrel is 24 inches long, 1-24 twist rate, Stainless Steel, Premier button rifled, matte finish barrel, Helical Fluting with a 3″chamber. The #2 barrel is a 12ga blank with a 20ga rifled bore; then fluted for weight reduction, strength, and faster cooling . It has a muzzle diameter of .935ths at the end of the Muzzle Brake and adds approximately 3/4 pound in weight to the overall gun. This #2  barrel has a much heavier wall thickness than the standard Savage factory slug barrel and will require a stock inlet adjustment.

This heavier tapered barrel is locked up tight against the action face, using a ground parallel, recoil lug (if needed) in between. It NO longer uses the Savage barrel nut locking system. Locking this heavier wall barrel solidly against the recoil and action face insures the barrel stays tight while it is under the heavy recoil and torque generated by a bore size, slow moving projectile turning at 53,000+ rpms. Remember a slug can weight 2-4 times more weight of a rifle projectile. And the actual amount of time the slug spends in the barrel of a slug gun is much longer than rifles at 2650fps+. That’s why this issue of locking the barrel tight to the action must be addressed.

The #2 barrel update (SOLD OUT FOR 2018)   is $450.00     Plus shipping .    Glass bedding the action into a Fiberglass or wooden stocks is $65.00 extra.     



NOTICE: Prices are subject to change without notice.     As much as a $60.00  (NON-REFUNDABLE)  charge will be assessed against your original deposit for any cancellations on the owners behalf; to offset return shipping costs..


For your reference:   The Internal size of a SAAMI specification rifled slug barrel: On top of the rifling (bore diameter) is .609ths minimum and .611ths is the maximum diameters.  In the bottom of the rifling between the lands (grove diameter) is .618ths minimum and .620ths maximum diameter. The 20ga NeoTec Copper 365gr projectile is .619ths in diameter, exactly in the middle of the (grove diameters) .618ths min.  <.619ths>  and 620ths max.


 Liability clause:    The purchaser assumes all responsibility for the proper installation of this number one (1) barrel upgrade on the Savage 220 bolt action slug gun. This includes setting the headspace to the proper SAAMI specification and applying the proper torque on the barrel nut. Once the barrel nut is properly torqued and the head space is rechecked; the purchaser must stamp/mark the barrel with the proper markings as follows [  20ga. 3”  1-24tr.  ] in an easily readable position on the barrel. Check the muzzle brake after cleaning for a bore obstruction, such as a stuck cleaning patch. Check the holes in the muzzle break for carbon/plastic build up every 2 years minimum. There is no implied accuracy guarantee or implied liability, with any barrel TarHunt did not install.     TarHunt is not responsible for any and all damages to the firearm(s), person(s) firing the firearm, and/or person(s) as bystanders, due to the improper installation of this barrel or due to the failure of the Savage 220 action.


The Savage 220 slug gun shown here has the #2 Upgrade installed.

This barrel is a SAAMI spec, Premier,  SS- button rifled barrel, 24 inch overall length, 1-24″ twist rate,  (heavy wall barrel), with a matte SS finished, Helical Fluted, 3″ chamber and a Muzzle Brake as standard.          Cost $450.00. +UPS