Jump to content
GLShooter

The Start of Testing

Recommended Posts

Oct 8, 2013 at 3:15pm : GLShooter
Post by GLSHOOTER on Oct 8, 2013 at 3:15pm
I am going to try and split some of this out as the challenge of juggling four or five wildcats, how is that for a visual, in one thread would be rather daunting. I know the 6.5 bore size is interesting to many on the Forum so here is a peek at the progress in that area. Enjoy.

This is what Ritch shot today, 10-6-13, out of the 24" Savage test barrel. All loads tested today were withing safe limits. Interestingly enough the data from Hodgdon on the 6,.5 Grendel was used and pressures were across the board lower than the G. and velocities were consistently higher than the G. was putting out with a 24" barrel. All loads today were with IMR 8208 XBR. Primers were all nice and round with not a flat one in the bunch.

First up was the Sierra 85 that is an excellent varmint bullet. Velocities were not shabby today nor were the groups. He forgot to write the speed on this one but it clocked at 3128. Not a bad pick a number group.

15a3c2d0-0a8e-44ba-94d5-6d198f915b50_zps

Next up was the Sierra 107 that lots of guys like in the 6.5 as it is a good trade off for weight vs BC. This load shows huge potential.

cc280fe1-38b6-41ce-b0f7-915d002dc9f6_zps

Ritch moved on to the 123 Noslers that he and I both like in the 6.5 bore size. These have a BC of 0.510 and are noted to shoot well way out yonder. This will show you a progression on powder charge vs velocity. The top load was a compressed case full yet pressures were nice and low.

The 28.0 load was not bad. For many of us we would stop right there after this group.

f147c4a0-fe00-4307-abd8-12581d639e13_zps

Like I said many would stop but not Ritch. He bumped it up 0.5 to 28.5 and started slinging pills. You be the judge.

7307899f-3c0f-4f6f-9398-e7d4021913da_zps

The last load for show was shot at 29.0. The group opened up a tad and if you look it appears to go a bit vertical and this often means it wants to go faster. This one pretty well maxed out the charge weight for the space so another powder will have to be called into play.

1c4ff6e0-9fbe-491f-aa91-cb19a4baf87e_zps

So three bullets performed well today for the new 6.5X6.8. Pressures were low and no signs of problems were noted. I talked with Ritch extensively and he mentioned the last group was shot with over 80 rounds in the tube without cleaning. He is going to move over to the 6X6.8 for some more testing next but will be revisiting this one for more work ups. With four wildcats on his hands, so far, the plate is full so he has split his efforts. Once my barrels arrive for the Savage and AR's uppers I will join in the fray and we will get some groups up on the self loaders post haste.

Greg

Share this post


Link to post
Share on other sites

Thought I'd add my group to the mix. Got to the range today with my new 6.5X6.8 BHW barrel. It's a 24" SS, Standard profile, Target crown AR barrel. After loading some fodder for breaking in the barrel I thought I'd bring some in various loads starting with 27.0 grains of 8208XBR and going up in 1/2 grain to 28.0. Edit: Bullet: 120gr Sierra BTHP Match. Loaded to ASC magazine length.

 

After zeroing in, I got great groups right from the start. The barrel liked the 27.5 grains of 8208 the best with this result.

 

65X68200yardtarget_zpse3545a21.jpg

 

Keep in mind this was shot 25 to 30 out of a new barrel at 200 yards. Front bi-pod, rear my shoulder from a bench. 5 shot .562" group outside dimension is fantastic. Absolutely, NO sign of pressure on the brass nor the primer. What a sweet rifle this one is!!! Can't wait till I get some more rounds down the tube to really see what I'll do.

 

Carl's got a winner here thanks to Ritch and Greg.

Edited by djmfl

Share this post


Link to post
Share on other sites

That is some fine shooting. Congratulations on your new barrel. Enjoy it as much as I have mine.

Share this post


Link to post
Share on other sites

Thanks Ritch! And thanks for all the hard work you've done bringing the 6.8 variants to the market. Thanks to Greg as well.

 

That group ain't too bad for a fellow "grandpa"!

Edited by djmfl

Share this post


Link to post
Share on other sites

Thanks Ritch! And thanks for all the hard work you've done bringing the 6.8 variants to the market. Thanks to Greg as well.

 

That group ain't too bad for a fellow "grandpa"!

 

Yep, I noticed how OLD you are.....................WOWSER!!!

 

You have some talent there in that trigger finger. I'd be renting out some of that DNA you have there.

 

Greg

 

PS: Don't forget there is a 22,a 6MM and a 25 for you to play with once you conquer the 6.5......Just sayin'

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×