With the

The Super 600 performs up to 12 operations on 6 individual shells simultaneously with one stroke of the press handle. It also features the revolutionary Star Crimp Head, Automatic Primer Feed, exclusive Resize-Deprime apparatus, Toggle Linkage, and Cam Operated Crimping Die. These Mec reloaders come completely assembled, tested and ready to use... without adjustment. With these many features and a low price they are easily the finest reloaders on the market.


Your Model Super 600 is completely assembled and tested at the factory, and is ready to provide long trouble-free service. Just follow these simple instructions.


Examine the contents of the shipping carton for damage or shortage. In addition to the assembled loader, the carton will contain 2 shot and powder containers with caps, three 1/4 — 20 machine screws and wing nuts for mounting, primer catcher, resizing ring with support tube and resizing adaptor plate, and primer seating assembly which is taped together. Immediately report any shortages or damages to your dealer or delivering carrier.


Place unit in desired position on bench and mark base mounting holes. Drill at marks using a 9/32 bit and then secure press to bench or mounting base using screws and wing nuts supplied. Note that bench is desirable but not required. Press can be fastened to wood or metal base and be completely portable. A very nice mounting base can be made from 3/4 inch plywood approximately 12" wide and 18" long with the press being mounted somewhat back of the center on the 18" length. Before screwing shot and powder containers into place, be sure neoprene grommets are in place in the measuring assembly.


Your MEC Super 600 is equipped with the exclusive Auto-Charge Bar mechanism. This mechanism in no way affects the flexibility of the flip-type measure. Powder, shot or charge bar can be changed as easily as with any other MEC model.

While the unit was adjusted before the actuating rod was assembled, it may be necessary to readjust because of severe handling during shipment. To check, hold press handle at bottom stop position. Charge bar should now be all the way to the left. If charge bar is not as far left as it will go, use adjusting nut (A). Bar and handle must be synchronized so that charge bar will hit left hand stop as handle hits bottom on down position. It is best to check this with machine empty.


Mec Reloader 600 Handle Assembley Mec Super 600







Let's Take A Look At The Super 600

Before you actually try reloading, it might be well to look over your loader, comparing it with the photograph at the right which identifies all the parts and dies you'll be using.

a Mote that the MEASURING ASSEMBLY pivots back for easy charging or changing of loads. This assembly is hinged by a machine screw with wing nut, which should be tightened to a point where some drag or resistance is felt when the measure is pivoted, b The CHARGING BAR is located just under the powder and shot containers. Each stroke of the press handle automatically moves the charge bar to left and right, measuring and dropping precise amounts of powder and shot into the shells. Bar can be operated manually if desired, by removing actuating rod. c SAFETY TUBE CLAMPS which will prevent primer detonation in case of obstruction. (Rammer tubes will slip under excess pressure.)

d WAD PRESSURE INDICATOR gives exact amount of pressure actually being applied to wad column at bottom of handle stroke. See explanation on page 6. e DEPRIMING STATION at which the shell opening is ironed, and may be resized for diameter and head spacing if necessary, f AUTOMATIC PRIMER FEED positions primers in shell carrier with each stroke of the handle, g REPRIMING STATION at which shell is also charged with powder. Spring applies proper amount of pressure and in addition compensates for variations in height of base wad. h WAD RAMMING STATION at which shot is also charged thru the wad ramming tube. Mechanitrol Wad Guide positions itself on shell automatically allowing any practical wad column to be seated with one stroke, i CRIMP STARTING STATION.

j CRIMPING STATION containing the exclusive cam-operated two-stage crimping apparatus. Die is completely adjustable for depth of crimp.

k RESIZING AND FINISHING STATION. Radius may be adjusted to suit individual taste. I SHELL CARRIER into which shells are placed and which automatically position each shell at the proper station, m PRIMER CATCHER which is secured into position by tilting so that notched edge slips under the tab provided in the base.

If you haven't already talked to your dealer about the different kinds of powder, shot, primer and wads, please refer to the information on the charging bar chart packed with each loader. This chart lists the various combinations of powder, shot and wad columns.

NOTE: Common sense precautions are advised, careless handling of flammables and explosives can result in serious injury. We endorse checking charges with a reliable scale, adhering to loads recommended by the powder manufacturer and suggest the use of safety glasses. We disclaim any liability for damage or injury resulting from reloading shot shells.



Your Super 600 is equipped with the exclusive self-cleaning primer seating assembly. It consists of 3 parts. Spring pad (A), seating spring (B) and seating arm (C).

To Install: Hold spring pad in place on underside of base with left hand. Place spring on seating arm and insert into pad using upward pressure. Seat pointed base of seating arm in detent provided for this purpose.

To Remove: Simply grasp seating arm, lift and pull toward you.

Star Crimp Shotshell


CHECK FOR CORRECT BAR &/or BUSHING! As a precautionary measure, powder opening in optional, bushing type bar is closed with a disc. Remove charge bar, discard disc and insert proper bushing. CHECK AGAIH and continue.

Release charging assembly wing nut and flip or pivot containers down to charging position. Pull the charging bar to the left as far as it will go, and lock in this position using locking lever (see photo Ho. 1). Fill container with powder and shot. Replace containers, powder container first, making sure it is mounted in the proper position (position P for powder and S for shot). Next replace the shot container. (Hote: Use only light or moderate pressure when tightening containers). Because of the weight factor, support the shot container with your hand while in the charging position so that there is no danger of its tearing loose under pressure (see photo Ho. 2). While still supporting the shot container with your hand, flip the assembly to the upright or loading position.


Open cover, position primer box face down on tray. Slide cover from right to left, leaving liner and primers. Carefully lift liner, allowing primers to remain on tray, close cover.

To interrupt the flow of primers, detach spring from upper projection on spring keeper, store on lower projection. Attach spring to upper projection to resume feed.


Photo Mec Prime


Place shell into carrier at depriming station and depress handle (see photo No. 5). This operation deprimes the shell and drops primer into shell carrier aperture. Now rotate carrier counter-clockwise.

Note: Rotation is a two-stage motion, with click stop positioning, which drops primer into seating assembly and then positions first shell under reprime tube.


Again place empty shell into position and depress handle. Now whilethe handle is in the down position, release the charge bar locking lever (see photo No. 6). This operation now reprimes and charges powder as well as deprimes the second shell. Again move carrier counter-clockwise to the next station.


Place proper wad column in wad guide and empty shell into carrier and again depress handle (see photo No. 7). Important: Do not force wads into guide as this spreads the fingers, preventing the wad guide from dropping into position on the shell. This operation deprimes, reprimes charges powder, seats wads and charges shot. Continue this same sequence of operation from this point on. Wad pressure can be checked while handle is depressed.

Mec Super 600

While visual checking is not necessary, pointer indicates the exact amount of pressure being applied to wad column when handle is depressed. Reading is always positive regardless of any other adjustments. While tool has been pre-set at the factory for average pressure required, you may find it desirable to increase or decrease pressure. This is done as described on page 11.

Note: Factory setting is recommended for all modern wads.


The Spindex Star Crimp Head with 8 point spinner and 6 point insert is standard. This 6 point insert is preferred for all new paper cases and some plastics. To obtain best quality crimps it may be necessary to index some types of shells so that folds return to original positions (see photo Mo. 9). When loading previously fired paper cases and some plastics, we suggest our part 634 P insert (optional) to start the crimp.


When carrier becomes full it is indexed by grasping the loaded shell and pulling it forward to the "gate" aperture at the depriming station (see photo Mo. 10). Perform the operations slowly at first, making certain that ail hand movements are done exactly as shown throughout. Increase speed slowly, only after you have the technique firmly in your grasp.



Inspection Slip Mec


Cases which do not slip readily into shell carrier should be rejected, to be resized to the proper diameter and head spacing after a considerable number have been accumulated. To resize at that time, lift primer feed remove shot and powder containers. Screw resizing ring and support tube into position over depriming punch. Mow slip resizing adapter into carrier below. Next slip the empty case into resizing ring and depress handle. This will bring metal portion of shell to original dimension. Apply force to handle in upward direction to eject shell from ring. In some instances, adjustment of the deprime punch may be required to obtain the strike required to strip the resize ring from the shell. With support tube removed, loosen locknut, 460A, turn deprime punch, 519, down to gain additional stroke. Return punch to clear shell prior to reloading. (SEE CALLOUTS, PAGE 7). If a great number of cases are to be resized, the MEC Case Conditioner is recommended.

Mec Deprime Punch

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