Caliber Conversion

What's Involved in a Caliber Conversion?

Mark 7 presses are designed to make changing from one caliber to another a relatively easy process. You will need to take into account all the major segments of the press when converting it; the Bullet Feeder, the Case Feeder, the Powder Measure, Priming, and the pieces of the press itself, which include; the shell plate, the case feed ram, and the case feed adapter. Depending on what caliber you are starting with and what caliber you wish to convert to, some of these parts may remain the same. We’ve created the resources below to show exactly which parts you will need to complete your conversion.

What's involved in a
caliber conversion?

Mark 7 presses are designed to make changing from one caliber to another a relatively easy process. You will need to take into account all the major segments of the press when converting it; the Bullet Feeder, the Case Feeder, the Powder Measure, Priming, and the pieces of the press itself, which include; the shell plate, the case feed ram, and the case feed adapter. Depending on what caliber you are starting with and what caliber you wish to convert to, some of these parts may remain the same. We’ve created the resources below to show exactly which parts you will need to complete your conversion.

Converting Your Case Feeder

case_feeder_conversion_kit

Your Mark 7 11” High Speed Case Feeder comes with both large and small Output Springs, and large and small Case Drop Tubes, so the only piece that may need to change is the Case Feed Plate. The plates are available in Small Pistol, Large Pistol, Small Rifle and Large Rifle.

Converting your Bullet Feeder

conversion-kit
The conversion kit for the Standard Mr. Bullet Feeder (not Pro) includes a complete dropper assembly, a custom powder funnel (for pistol calibers) and a new collator plate for the caliber of choice.

Converting Priming

Gen-2-Priming-System-12

Your Mark 7 Apex 10 Manual Priming system comes with both large and small priming tubes, so you will not need to purchase anything new, simply switch from one to the other depending on what caliber you are loading.

Converting your Press

caliber_conversion_m7

Depending on calibers, you may need a new Shellplate, Case Feed Ram and Case Feed Adapter. However, some calibers use the same parts. For example, while 9mm and 38 Super Comp require different shell plates, you'll be able to use the same Case Feed Ram and Adapter for both calibers. 

Converting Your Case Feeder

Your Mark 7 11” High Speed Case Feeder comes with both large and small Output Springs, and large and small Case Drop Tubes, so the only piece that may need to change is the Case Feed Plate. The plates are available in Small Pistol, Large Pistol, Small Rifle and Large Rifle.

Converting Priming

Your Mark 7 Apex 10 Manual Priming system comes with both large and small priming tubes, so you will not need to purchase anything new, simply switch from one to the other depending on what caliber you are loading.

evo-commercial

Converting Your Bullet Feeder

The conversion kit for the Standard Mr. Bullet Feeder (not Pro) includes a complete dropper assembly, a custom powder funnel (for pistol calibers) and a new collator plate for the caliber of choice.

Converting your Press

Depending on calibers, you may need a new Shellplate, Case Feed Ram and Case Feed Adapter. However, some calibers use the same parts. For example, while 9mm and 38 Super Comp require different shell plates, you'll be able to use the same Case Feed Ram and Adapter for both calibers. 

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