Danville, PA WHERE ACCURACY IS EVERYTHING !!

Danville, PA WHERE ACCURACY IS EVERYTHING !!

Danville, PA WHERE ACCURACY IS EVERYTHING !!Danville, PA WHERE ACCURACY IS EVERYTHING !!Danville, PA WHERE ACCURACY IS EVERYTHING !!

MCR Reamer List

Montour County Rifles


Reamer List Updated 9-10-19


Throat length is measured from case mouth at maximum length to intersection point of free bore and 1.5 degree lead angle






20 caliber


.20 Tactical / .233 neck / .096 throat length

.20 Tactical / .226 neck / .046 throat length

.20 Practical / .233 neck / .046 throat length

.204 Ruger / .232 neck / .110 throat length





.22 caliber


.22-250 / .255 neck / .078 throat length

.22-250 / .250 neck / .026 throat length

.22-250 Ackley / .254 neck / .075 throat length

.22-250 Ackley / .250 neck / .060 throat length

.222 Remington / .254 neck / .040 throat length

.221 Fireball / .254 neck / .035 throat length

.22 Hornet / .245 neck / .025 throat length

.22 Long Rifle

 22-243 Winchester / .258 neck / .095 throat length

.223 Remington Match / .251 neck / .078 throat length

.223 Remington / .254 neck / .040 throat length

.223 WSSM / .253 neck / .035 throat length

.22 Creedmoor / .257 neck / .040 throat length

.22 cal. 1.5 degree uni-throater





.243 caliber / 6mm


6mm Dasher / .2704 neck / .125 throat length

6mm - .284 / .272 neck / .095 throat length

6mm x 47 Lapua / .271 neck / .120 throat length

6mm BR / .269 neck / .125 throat length

6mm BR / .2704 neck / .110 throat length

6mm BR / .262 neck / .120 throat length

6mm Remington / .277 neck / .110 throat length

6mm Remington Ackley / .276 neck / .075 throat length

6mm WSSM / .272 neck / .070 throat length

6mm - .250 / .274 neck / .050 throat length

6mm - 06 Ackley Imp. / .277 neck / .035 throat length

6mm Hart / McCrea / .281 neck / .175 throat length

.243 Winchester / .277 neck / .035 throat length

.243 Winchester Ackley / .278 neck / .035 throat length

6 x 45 / .271 neck / .095 throat length

6mm Competition Match / .274 neck / .113 throat length

6mm Competition Match / .271 neck / .110 throat length

6mm Competition Match / resize reamer

6 XC / .276 neck / .100 throat length

6mm Creedmore / .275 neck / .135 throat length

6mm 1.5 degree uni-throater






.25 caliber


.25 - 06 / .288 neck / .030 throat length

.25 - 06 Ackley / .289 neck / .120 throat length

.25 - .284 / .292 neck / .035 throat length

.257 Weatherby Mag / .289 neck / .380 throat length

.257 Roberts Ackley Imp. / .289 neck / .065 throat length


.250 - 3000 Savage / .287 neck / .025 throat length

.257 cal. 1.5 degree uni-throater





.264 caliber / 6.5mm


260 Remington / .298 neck / .120 throat length

260 Remington Ackley Imp. / .298 neck / .100 throat length

264 Winchester Mag / .297 neck / .225 throat length

6.5 x 47 Lapua / .294 neck / .155 throat length

6.5 - .284 Norma / .295 neck / .220 throat length 

6.5 - .284 Norma / .291 neck / .210 throat length

6.5 - 300 Weatherby / .296 neck / .215 throat length

6.5 - 300 Weatherby Mag. Ackley Imp. / .295 neck / .110 throat length

6.5 - 300 WSM / .299 neck / .035 throat length

6.5-06 / .296 neck / .220 throat length

6.5-06 Ackley Imp. / .296 neck / .220 throat length

6.5 Creedmore / .296 neck / .205 throat length

6.5 Super LRS / .296 neck / .080 throat length

6.5 SAUM  .296 neck / .085 throat length

6.5 x 55 Ackley Imp. / .291 neck / .105 throat length

6.5 PRC / .297 neck / .205 throat length

6.5 Grendel / .295 neck / .105 throat length 

6.5mm 1.5 degree uni-throater





.270 caliber


.270 Winchester / .310 neck / .035 throat length

270 WSM / .310 neck / .191 throat length





.284 caliber / 7mm


7mm - 08 / .316 neck / .110 throat length

7mm Dakota / .316 neck / .180 throat length

7mm WSM / .312 neck / .220 throat length

7mm WSM / .320 neck / .050 throat length

7mm STW Rougher / .308 neck

7mm STW .311 neck / .140 throat length

7mm STW .319 neck / .210 throat length

7mm Remington Ultra Mag Imp. / .323 neck / .250 throat length

7mm Remington Mag / .316 neck / .135 throat length

7mm Fielding Mag / .310 neck / .410 throat length

7mm Fielding Mag / Resize Reamer

7mm SAUM / .321 neck / .100 throat length

7mm Practical / .317 neck / .145 throat length

.284 Winchester Rougher 

.284 Winchester / .322 neck / .050 throat length

.284 Winchester / .317 neck / .155 throat length

280 Remington / .316 neck / .030 throat length

280 Remington Ackley Imp. / .314 neck / .055 throat length


28 Nosler / .321 neck / .235 throat length

28 Nosler / .314 neck / .245 throat length

7mm Reaper / .312 neck / .265 throat length

7mm LRM / .321 neck / .143 throat length

7mm 1.5 degree uni-throater




.30 caliber


30 - 338 Winchester Mag / .341 neck / .120 throat length

30 - 06 / .341 neck / .025 throat length

30 - 06 Ackley Imp. / .341 neck / .025 throat length

30-06 Serengeti / .340 neck / .120 throat length

30 - 378 Weatherby / .335 neck / .120 throat length

30 - 378 Weatherby Ackley Imp. / .336 neck / .385 throat length

300 Weatherby Mag / .338 neck / .000 throat length

300 Weatherby Mag Ackley Imp. / .338 neck / .110 throat length

30 - 338 LKR ( customer designed 30-338 Lapua Imp.) / .336 neck / .345 throat length

300 WSM / .345 neck / .035 throat length

300 WSM Match / .341 neck / .070 throat length

300 Winchester Mag / .335 neck / .025 throat length

300 Winchester Mag / .342 neck / .025 throat length

300 Winchester Mag Tactical Match / .341 neck / .095 throat length

300 Remington Ultra Mag / .345 neck / .120 throat length

300 Remington Ultra Mag / .341 neck / .025 throat length

308 Baer / .335 neck / .030 throat length


30-338 Lapua Imp. 35* shoulder / .333 neck / .275 throat length

300 SAUM / .345 neck / .125 throat length

308 Winchester / .345 neck / .095 throat length

308 Winchester Match / .345 neck / .115 throat length

30 Nosler / .341 neck / .145 throat length

300 Norma Mag. / .343 neck / .230 throat length

30 cal neck and throat reamer / .342 neck / .095 throat length

.308 cal. 1.5 degree uni-throater





35 caliber


35 Whelen / .389 neck / .145 throat length





338 caliber


338-06 A-Square / .372 neck / .195 throat length

338 Winchester Mag / .371 neck / .020 throat length

338 - 378 Weatherby / .369 neck / .045 throat length

338 Remington Ultra Mag / .372 neck / .125 throat length

338 EDGE / .371 neck / .120 throat length




338 Lapua Mag / .373 neck / .150 throat length

338 Lapua Mag / .373 neck / .020 throat length

338 Lapua Imp. 40* / .374 neck / .150 throat length

338 Norma Mag / .371 neck / .240 throat length

338-300 WSM / .374 neck / .030 throat length

338-408 Chey-Tac Imp. 35* / .372 neck / .220 throat length

338 - 408 Chey-Tac / .372 neck / .230 throat length

340 Weatherby Mag / .369 neck / .356 throat length

33 Nosler / .371 neck / .125 throat length

.338 cal. 1.5 degree uni-throater





375 Caliber


375 Ultra Mag / .406 neck / .180 throat length





45 Caliber


45 Raptor / .110 throat length

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