MEC 812020 SIZEMASTER 20 GAUGE

Name: MEC 812020 SIZEMASTER 20 GAUGE
Brand: Mec
SKU: 812020-098489015240
Price: 407.43 USD
Availability: InStock

Overview

Built for shotshell reloaders who want a straightforward single-stage press, this model focuses on simplicity and convenience without adding unnecessary complexity. Its Power Ring collet resizer is designed to return bases to factory specification, and it is set up for 2-3/4" shells with adjustment for 3" shells. The included E-Z Prime primer feeder adds practical efficiency for 20 gauge loading, while optional die sets provide flexibility if you later want to change gauges. As with any reloading setup, load data should be verified through a reloading manual or powder manufacturer before use.

Why Hunters Choose the Mec

Single-stage Design

Keeps the press straightforward for

Power Ring

Collet resizer returns bases to

Works Brass

Brass or steel heads, including

Factory Set

For 2-3/4" shells and adjustable

E-z Prime

Primer feeder is included on

Key Features

Single-stage shotshell press for 20 gauge reloading
Designed for beginners through experienced reloaders
"Power Ring" collet resizer returns bases to factory specification
Works with brass or steel heads, high or low base
Factory set for 2-3/4" shells and adjustable for 3" shells
E-Z Prime primer feeder included

Best Used For

Hunters reloading 20 gauge shells who want a straightforward single-stage press
Beginners learning shotshell reloading and preferring simple, guided operation
Experienced reloaders seeking a convenient press for routine 2-3/4 inch and 3 inch shells
Users needing a primer feeder included on compatible 20 gauge setups
Reloaders who value a collet resizer for brass or steel heads

Specifications

Additional Die Sets Available	Yes
Base Compatibility	Brass or steel heads, high or low base
E Z Prime Primer Feeder	Included
Gauge	20 Gauge
Load Data Note	Check your reloading manual or go to a powder manufacturer's website for load data
Model	Sizemaster
Power Ring Collet Resizer	Included
Primer Feeder Applicable Gauges	10, 12, 16, 20, 28 gauge
Shell Length Adjustable To	3" shells
Shell Length Factory Setting	2-3/4"
Type	Single Stage Shotshell Press

Pros

Single-stage design keeps the press straightforward for focused shotshell reloading.
Power Ring collet resizer returns bases to factory specification.
Works with brass or steel heads, including high- and low-base shells.
Factory set for 2-3/4" shells and adjustable for 3" shells.
E-Z Prime primer feeder is included on 20 gauge models.
Additional die sets are available for changing gauges.

Considerations & Trade-offs

Single-stage operation keeps the process straightforward, but it is not designed for high-volume progressive loading.
Factory set for 2-3/4" shells, so 3" use requires adjustment before loading.
Gauge changes are possible with additional die sets, but those are separate purchases.
Load data is not included; you need to verify recipes in a reloading manual or on the powder manufacturer’s website.

Suggested Comparisons

Shotshell reloading press
Single-stage reloading press
20 gauge reloading equipment
Shotshell reloading accessories

Suggested Accessories

Reloading manual
Shotshell reloading components
Primer feeder
Additional die set

Frequently Asked Questions

What gauge is this Sizemaster press set up for?

This product is the MEC Sizemaster 20 gauge model.

What shell lengths can it handle?

It is factory set for 2-3/4" shells and adjustable for 3" shells.

Does it include a primer feeder?

Yes. The E-Z Prime primer feeder is included on 10, 12, 16, 20, and 28 gauge models, including this 20 gauge press.

Can it resize different types of shell bases?

Yes. The "Power Ring" collet resizer is described as returning bases to factory specification, whether they are brass or steel heads, high or low base.

Can this press be converted to other gauges?

Additional die sets are available to change gauges, according to the product description.