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NECK REAMERS (Ream after firing)

 


FAQs

Shop our Neck Reamers quickly with Express Shopping. 


 

Thick case necks can cause high chamber pressures and flyers. The Forster Neck Reamer mounts in the cutter of a Forster Case Trimmer in place of the pilot and removes the excess brass from the neck walls. The Forster Neck Reamer is manufactured from high grade, wear-resistant tool steel and ground .0025" to .003" over the maximum bullet diameter. The staggered tooth design cuts the brass smoothly without chattering.

 Forster Neck Reamer

*Shown mounted on Original Case Trimmer
For "Original", "Classic" or "Power" Case Trimmer

 

Neck Reamer Instructions 

Three important notes about using your Forster Neck Reamer:

  • Neck reaming should only be performed after the cases have been fired with a full load and before the neck or full length sizing operation. Wall thickness can be measured with a tubing micrometer, but a simpler test for excess brass in the neck area is to slide a bullet into a fired, unsized case neck. If you feel interference, the neck should be reamed or outside neck turned.
  • Use neck reamers before resizing. Three exceptions to this rule are:
    1. P/N NR1220-.220" diameter reamer for .224" bullets
    2. P/N NR1239-.239" diameter reamer for .243" bullets
    3. P/N NR4275-.4275" diameter reamer for .429" bullet
      • These are common sizes that reloaders use to ream their cases just before seating bullets. These three sizes are kept in stock for those who intend to ream after the sizing operation just before seating bullets.
  • We grind many other special sizes as needed. Wildcatters often require specially sized reamers when converting brass from one caliber to another. You tell us the size you need and we'll grind it to your exact specifications. A nominal special grinding fee applies. Our quick turnaround service adds a versatile case preparation tool to your Forster Case Trimmer System.

Reamers For Use Before Sizing

Bullet
Diameter

Item #

Bullet
Diameter

Item#

Bullet
Diameter

Item #

.171"*

NR1017

.277"

NR1277

.358"

NR1358

.204"

NR1204

.284"

NR1284

.375"

NR1375

.224" 

NR1224

.308"

NR1308

.400"

NR1400

.243"

NR1243

.311"

NR1311

.410"

NR1410

.257"

NR1257

.323"

NR1323

.430"

NR1432

.264"

NR1264

.338"

NR1338

.452"

NR1452

 

 

.355"

NR1355

.458"

NR1458

*requires 17 caliber cutter shaft

Three Reamers For Use After Sizing

Bullet Diameter

Reamer Diameter

Item #

.224"

.220"

NR1220

.243"

.239"

NR1239

.429"

.4275"

NR4275

 

 
 
 
DNV Forster adheres to ISO 9001:2008
Quality Management System Standards.
Forster Products' certificate
CERT-05739-2006-AQ-HOU-RvA is
accredited by independent auditor DNV.
FORSTER PRODUCTS, INC.
310 East Lanark Avenue
Lanark, IL 61046
PHONE: (815) 493-6360
FAX: (815) 493-2371
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