6CM First Shots - Looks Good!

[rcw3]

I just had a new 30" Brux 6mm 1:7.5" twist barrel done up for my MAK repeater tube gun with Joe Hendricks 6CM cartridge. I have to say, I'm impressed. It's a real easy cartridge to work with. I loaded up 22 rounds of Winchester 243 Win brass with 47 gr of H1000, stuck a Sierra 107 on top at 2.800",about .025" jump) and took them out to fire form them. Fire forming is a cinch, just stick them in the rifle and shoot them as you normally would. For highpower competition, clearly you could shoot fire forming loads at 200 and 300 yards no problem. It was very cold at the range, and by the end I could not feel what my fingers were touching, including the trigger. Anyway, I shot two shots slow prone at an MR-31 target at 100 yards to get a zero. With no zero, the first shot was about 6" high and 6" to the left, and I lucked out cranking the knobs on my sights and the second shot was and x. I then shot the other 20 slow prone at a different MR-31 target right next to it, and when the snow settled a 200/15x was sitting there with fire forming loads, 18 of the shots went into a group about the size of a quarter,even with pulse and body movement included). So far so good! It will be good when it's a little warmer - I froze out there, but with a new barrel to try out I just could not resist.

Robert Whitley

 

[rhino]

So Robert,

We going to see this rig at Bodines this year?

The 6cm's parent case is a .243 right?

RHINOUT!

 

[rcw3]

Rhino

I will be at Bodines this year. The 6CM chambering I have was done with Hendricks "across the course" reamer, and it has a shorter throat. This thing would be awesome for varmint weight bullets too. If I was going to use it for single load long range shooting only, I would re-throat it a little longer. Joe has a long range reamer, but the repeater tube gun is a magazine feed across the course type rifle, so I stayed with the shorter throat.

I expect to be shooting two 6mm's this year at the 1000 yard matches, but not the 6CM,that will be reserved for across the course and maybe a 3x600 or two). The first is the 6mm Super X that I made up at the same time Joe was making up his 6CM. The second will be a 6mm Rem.

Attached is a picture of the three cartridge cases. On the left, the 6mm Super X, in the center the 6CM and on the right the 6mm Remington. The 6mm Super X and the 6CM are both made from 243 Win brass.

All the cases can drive a 115 gr 6mm bullet 3000+ fps.

Robert Whitley

 

[rhino]

I got a straight .243 LW that will be hooked to a Savage and SSS Laminate benchrest stock.

Also going to be shooting a 260 24 inch factory savage barrel stuck to a Stevens action. 123 scenars will be the bullet.

My 6.5x55 might not be done for the first match from WTC. Just ordered the barrel from Bartlein.

Maybe we can hook up and pay a puller or "your son" to pull for us?

Whats his fee??

RHINOUT!

 

[joesr]

Robert,

I happy you are pleased with the initial results from the 6CM. Just wait until you shoot some full loads with the 115's. You will get 3100 and possibly 3200 fps with the 115,uncoated).

Also, the barrel life you will achieve is going to blow your hat off. 3200 to 4000 rounds per barrel is what we expect and are experiencing currently.

Accuracy is not an issue with velocity nor barrel life.

Joe Hendricks

 

[rcw3]

Joe

Based on the limited shooting I did with the cartridge I have no concern over the accuracy of the cartridge, it's there. At 600 yards, if I can run a 115 at 3000 fps, I am good with that, and I have no doubt the cartridge can do that too.

Now work some of your magic with the man upstairs and get us some warmer weather so I can go out and shoot the thing without freezing.

Robert