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August 9th, 2018

6XC II — Great 6mm Option For Precision Rifle Series

robert whitley grimstod Premier Accuracy 6XC II 6XCII PRS precision rifle series varmint .243 Norma
Rifle Crafted by PremierAccuracy.com. Inset 6XC II photo by 6mmAR.com.

With all the buzz about the 6.5 Creedmoor and its 6mm Creedmoor little brother, some folks forget that we’ve had an outstanding mid-sized, Across-the-Course cartridge for a long time — the 6XC. Pioneered by 11-time National High Power champion David Tubb, the 6XC has won national High Power championships, excelled in mid-range prone matches, and performed great in the varmint fields. It has also been used successfully by many Precision Rifle Series competitors. It’s no wonder — the 6XC has less recoil than a 6.5mm Creedmoor, there is a great selection of superb 6mm bullets, and Norma-made 6XC brass is high-quality and reasonably priced from DavidTubb.com.

robert whitley grimstod Premier Accuracy 6XC II 6XCII PRS precision rifle series varmint .243 Norma

PRS Rifle with Modern 6XC II Chamber
Forum member Grimstod posted this new 6XC II rifle in our long-running Pride and Joy Rifle Thread. Grimstod notes: “These 6XC Gen IIs seam to be a hot commodity lately. This one is for PRS. It features a Premier Accuracy Atlas action made by Kelbly. The bolt and heavy-taper, fluted barrel are Ceracoted to match. I really like the ejectors on these Atlas actions. The stock is a KRG X-Ray painted in Premier Accuracy exclusive colors. The Kelbly Atlas action does not have any modifications. So far every Kelbly action we have tried has had perfect timing and trigger fall. We have been supper pleased with them. I look forward to using a lot more of these excellent actions.”

What is the 6XC II you may ask? That designates a 6XC with a chamber dimension optimized for Norma brass. It turns out that Norma brass is a bit bigger at the bottom than the 22-250 brass from which the 6XC originated. Robert Whitley of 6mmAR.com has created two new JGS reamer specs that fit the Norma brass perfectly, improving feeding and extraction. Here is Robert’s Report:

The 6XC II Chamber — Upgraded for Today’s Norma 6XC Brass

by Robert Whitley of 6mmAR.com
The 6XC II Chamber works perfectly with the Norma 6XC brass and resolves the “sticky bolt lift” issue. The original 6XC chambering was designed based off the usage of 22-250 brass which typically has a web diameter in the range of .461″-.463″. The area of the chamber just forward of the web on the original 6XC chambering was .4695″ which left plenty of clearance.

robert whitley grimstod Premier Accuracy 6XC II 6XCII PRS precision rifle series varmint .243 Norma

When Norma 6XC brass became available Norma appears to have developed the base of the case from the .308 Winchester line of cases which have a larger web diameter. The web diameter of the Norma brass typically measures right around .4685″ which leaves almost no diameter clearance.

As shooters would use Norma 6XC brass in an original 6XC chamber they typically would experience “sticky bolt lift” due to the lack of clearance and the fact that the large web diameter of the brass prohibited the re-size dies (no matter how small the base diameter was) from squeezing the brass down enough to create sufficient clearance. The 6XC II chamber resolves this issue. You can order 6XC II sizing dies from 6mmAR.com that work perfectly with this re-designed chambering. 6XC II die sets are in stock now — call (215) 348-8789 to order.

6XC II Long Range Reamer (Throated long for 105-115gr Bullets):
The 6XC II-LT reamer below is throated long to keep the full bearing surface of 110-115gr bullets forward of the neck/shoulder junction of the case. Note, 6mmAR.com has also developed a shorter-freebore version for 6mm bullets with shorter bearing surface. SEE shorter 6XC II Reamer Print.

robert whitley grimstod Premier Accuracy 6XC II 6XCII PRS precision rifle series varmint .243 Norma

6XC II Chamber and Sizing Die Combo:

– Resolves the “sticky bolt lift” problem shooters experienced using the Norma 6XC Brass in the original 6XC chambers.

– Chamber accepts all 6XC brass or ammo with no modification. Take your existing 6XC brass or ammo and use it without issues.

– Works well with existing Norma 6XC brass, or 6XC brass made from re-formed Winchester and Remington 22-250 brass.

– 6XC II Sizing dies and die sets are available from 6mmAR.com and in stock.

6XC II custom dies redding

If you are looking for someone to chamber your rifle or re-barrel an existing rifle in the 6XC II chamber, Fred at Sabreco, Inc. in Skippack, PA, (610) 584-8228 can help you. He has the reamers for the cartridge as well as the head space gauges for the cartridge, and has had extensive experience chambering many barrels and rifles.

Permalink - Articles, Bullets, Brass, Ammo 6 Comments »
August 9th, 2018

Become a CMP Master Rifle Instructor

CMP Master instructor clinic workshop training Camp Perry Talladega Marksmanship
Photo Courtesy Garand Collectors Association, TheGCA.org.

We all enjoy shooting rifles, but it’s also fulfilling to share your knowledge as a mentor. Serving as a rifle instructor can be very rewarding. Now the CMP offers a program to certify Master Instructors for the CMP’s most popular rifle programs — Vintage Military and Rimfire Sporter.

CMP Master Instructor Training Workshops

As a CMP Instructor you can help novices learn to safely shoot the M1 Garand, M1903 Springfield, and other vintage military rifles. You can also help with the very popular Rimfire Sporter program. Later this year, the CMP is offering an excellent program to help train new Master Instructors.

Experienced rifle marksmanship instructors and shooters who wish to receive advanced training and be certified as “Master Instructors” to teach CMP-sanctioned Clinics are invited to apply to attend a CMP Master Instructor Training Workshop. These workshops will train instructors to conduct Garand, Springfield, and Vintage Military Rifle Clinics and/or Rimfire Sporter Clinics. There will be two (2) instructor training workshops this year, one at Camp Perry in October and the second in Talladega in December. Dates and locations are:

Camp Perry, Ohio: Oct. 6-7, 2018 | Talladega Park, Alabama: Dec. 4, 2018

For more information or to register, visit http://thecmp.org/training-tech/gsm-rifle-master-clinics/ or contact Kim Filipiak at kfilipiak@thecmp.org, 419-635-2141 ext 706.

M1903 Springfield shooter at Camp Perry. From GarandThumbBlog’s 2015 CMP Games Video.
CMP Master instructor clinic workshop training Camp Perry Talladega Marksmanship

CMP Master Instructor Class — In the Beginning
Our friend Dennis Santiago has been a CMP instructor for many years. He reports this has been a great experience and the CMP is a great organization. Dennis earned his “teaching credentials” at the first-ever GSM (Garand/Springfield/Vintage Military) Master Instructor Class.

CMP GSM Dennis Santiogo Master Instructor
CMP Director Gary Anderson is top row far left, with Dennis in front row center.

My Decade as a CMP Master Instructor by Dennis Santiago
I was in the first GSM Master Instructor class. It was taught at Camp Pendleton (CA) in November 2006 as part of the CMP Western Games. It was a three-day class by then-head of the Civilian Marksmanship Program, Gary Anderson.

Master InstructorWe were the guinea pigs for an experiment. Our mission would be to take what we learned back to our clubs and create programs to teach the sport of High Power riflery to Americans, most of whom, were unfamiliar with shooting, let alone the details of serious competition. It was one of the most rewarding shared experiences of my life and it began a 10-year journey that helped build my love for the sport.

Gary spent lots of time not only teaching his prepared material but working with us on feedback about how to improve the curriculum. I took what I learned back to the Burbank Rifle and Revolver Club (BRRC) and, working with Wayne Fenner (left in photo), my friend and fellow sponsor of the California Grizzlies Junior Rifle Team, adapted BRRC’s training match program to the CMP’s approach.

Over the course of almost a decade, I taught a battalion of Americans from every walk of life and every political and ethnic background how to operate and compete with the U.S. Rifle M-1 Garand. It defined one weekend of every month of my life. We experimented with every CMP match format that came out, often discussing concepts with Gary and the CMP team.

Many of the students I taught went on to become accomplished competitors in their own right. I’ve watched them win medals, major tournaments, become distinguished riflemen. Some set national records. One made it to the Olympic Trials. The true reward was to hear from all of them again and again over the years. I’m from the old school that says you pass on what you have learned because you pay forward in gratitude to those who taught you. And so it was the decade I was BRRC’s GSM Master Instructor of record.

If you want to make a difference to the growth of our sport, consider taking the time to become a GSM Master Instructor. Teach another battalion of Americans what it means to be the caretakers of our heritage from behind every blade of grass.

DCM Emeritus Gary Anderson Teaches Clinic at Camp Perry, Ohio:
CMP Master instructor clinic workshop training Camp Perry Talladega Marksmanship

CMP 1903 springfield
Here a Springfield M1903 shooter (in period-authentic uniform) competes in CMP Legacy Match.

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