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View Full Version : Anyone loading the Barnes TTSX in 6.5 Grendel?


Whiskey_Tango
01-18-2017, 7:54 PM
They recomend RL15 for the 100 and 120gr. I've read mixed reviews about RL15 in the Grendel. What say yee?

http://www.barnesbullets.com/files/2014/11/6.5GrendelV9ForWeb.pdf

acourvil
01-19-2017, 3:10 PM
I use 8208xbr and that works well, not sure about RL15. Also, I would focus on the 100 v. the 120 to keep the velocity up to maximize expansion.

Whiskey_Tango
01-19-2017, 10:21 PM
^thanks. I was thinking along the same lines about the 100gr. I've never tried to take game much beyond 200yds so the lower bc of the 100gr pill may not be a factor.

Chaosh1
01-20-2017, 11:25 AM
I had planned on using Nosler CC 123 with 8208 XBR.

NapalmCheese
01-20-2017, 12:02 PM
^thanks. I was thinking along the same lines about the 100gr. I've never tried to take game much beyond 200yds so the lower bc of the 100gr pill may not won't be a factor.

FIFY

silvertriple
01-22-2017, 8:53 PM
Try Benchmark or H4895. Currently, I'm using Benchmark with the 100 ttsx. The load has shot really well in 3 AR rifles, holding moa or less out to 400 yards. The load has taken several bucks with very good terminal performance from 60-120 yards.

acourvil
01-24-2017, 7:45 AM
^thanks. I was thinking along the same lines about the 100gr. I've never tried to take game much beyond 200yds so the lower bc of the 100gr pill may not be a factor.

200 yards or under it won't make any difference. If you push into the 300-400 range, the 100TTSX will probably still be going fast enough to expand properly, while the 120TTSX will likely have slowed too much. But it will ultimately depend on what your load is and what you are hunting (and of course your marksmanship).

Whiskey_Tango
01-24-2017, 7:58 PM
Thanks for the feedback. Once I find, load, and shoot the 100gr ttsx I'll report back.

Update, found some TAC TX 100's at Vizards.

6.5Grendelfan
01-25-2017, 7:41 AM
This post may be of interest to you on the 6.5 Grendel Forum

http://www.65grendel.com/forum/showthread.php?13324-Lead-Free-Projectiles-for-the-6.5-Grendel

Whiskey_Tango
02-05-2017, 11:19 AM
Update (kinda) :
I loaded up some 100gr and 120gr TTSX with Federal 205's and RL-15 as per the Barnes data. Stepped the powder load by .3 grain increments up to their max. All 2.260 COAL.

I think I'll primarily fire these out of my Satern 20". Just waiting for things to dry up a bit before I test.

I also have some 123 SST I want to load with RL-15 as per the Nosler data. They have loads specified for their 123gr HPBT.

Whiskey_Tango
03-11-2017, 1:34 PM
Finally shot a few different loadings for the 100 TTSX (dunno why I wrote 110). The hottest one (29.6 reloader15) seemed to do the best. 205 Federal primers. Don't have a chrono yet. Also shot factory SST and ELD for comparison. 20" Satern barrel, 100 yards on bags.

http://i1166.photobucket.com/albums/q605/Bengrahm/image_zpsdkxhcvpz.jpeg

http://i1166.photobucket.com/albums/q605/Bengrahm/image_zps5wwiqf3a.jpeg

http://i1166.photobucket.com/albums/q605/Bengrahm/image_zpseamdnj0j.jpeg

NapalmCheese
03-12-2017, 1:29 AM
Update (kinda) :
I loaded up some 100gr and 120gr TTSX with Federal 205's and RL-15 as per the Barnes data. Stepped the powder load by .3 grain increments up to their max. All 2.260 COAL.

I think I'll primarily fire these out of my Satern 20". Just waiting for things to dry up a bit before I test.

I also have some 123 SST I want to load with RL-15 as per the Nosler data. They have loads specified for their 123gr HPBT.

My experience (largely gathered from Divernhunter) suggests that the Barnes bullets tend to do better towards the max end of their loads.

My (Divernhunter's really) experience suggests that when you switch from pure copper to gilding metal (or vice versa) you should scrub your bore.

Xcountryrider
04-06-2017, 10:35 PM
I updated the www.msrhunt.com 6.5 Grendel community reloading data spreadsheet with your load.

https://docs.google.com/spreadsheets/d/1IJ99k4Kei86K7BmQGqezj67EA4UJ-cYlN8V6_NH0jqE/edit#gid=385694173

silvertriple
04-06-2017, 11:23 PM
Nice shooting. I've also found the ttsx likes to be pushed fast.

BillyGoatCrawler
04-07-2017, 9:22 AM
My experience (largely gathered from Divernhunter) suggests that the Barnes bullets tend to do better towards the max end of their loads.

My (Divernhunter's really) experience suggests that when you switch from pure copper to gilding metal (or vice versa) you should scrub your bore.

I loaded the 100gr TTSX with 8208XBR in increments. I don't have the info with me right now but I want to say I went up to 30.6gr. Its a compressed load and I started to see pressure signs, so be careful. I got 2806 fps from an 18" Satern barrel. I was very happy with the velocity, but my precision degraded as I increased charge. It went from something like 0.75" to 1.25" from bottom to top of charge scale.

I am going to do a new ladder and retest. I had a lot of muzzle braked rifles near my that day and was flinching some. I also will scrub the bore big time before. I didn't clean it and went from amax rounds directly to the TTSX. I knew that was a bad idea, but was in a hurry.

NapalmCheese
04-07-2017, 11:16 AM
I loaded the 100gr TTSX with 8208XBR in increments. I don't have the info with me right now but I want to say I went up to 30.6gr. Its a compressed load and I started to see pressure signs, so be careful. I got 2806 fps from an 18" Satern barrel. I was very happy with the velocity, but my precision degraded as I increased charge. It went from something like 0.75" to 1.25" from bottom to top of charge scale.

I am going to do a new ladder and retest. I had a lot of muzzle braked rifles near my that day and was flinching some. I also will scrub the bore big time before. I didn't clean it and went from amax rounds directly to the TTSX. I knew that was a bad idea, but was in a hurry.

The Barnes manual lists 29.5 as max so yeah, approach with caution. That's good velocity from that 18 inch barrel. At 29.5 Barnes lists 2855 fps from a 24 inch barrel in their manual. I'll be working up some loads for a 16 inch barrel and if I can get 2600 fps muzzle velocity I think it'd be pretty okay with shots inside of 200 yards (not optimal, but okay). Otherwise that rifle is mostly going to see SSTs and AMaxs and may never see a shot on game anyway.

Regarding scrubbing the bore, yes, I've found that it makes quite the difference. I don't know if the same would hold true switching from swift bullets (pure copper jacket) to barnes, or switching from ballistic tips to e-tips (gilding metal). In my experience the switch from standard gilding metal jacketed bullets to e-tips went just fine, but switching from gilding metal jacketed to pure copper required cleaning and de-coppering the bore for the best performance.

MongooseV8
04-07-2017, 12:59 PM
Yes, pushing them fast with a decent jump gives me great accuracy with Barnes TTSX. And a clean bore has been crucial in a few of my barrels. I usually have to shoot a handful of fowlers before my lead free groups settle down after a good scrub.

Also most TTSX bullets need a minimum of 2100 fps at the target to fully expand. However I have been told a few times now that Barnes designed the lighter 6.5 bullet for the Grendel and it will expand at lower speeds as well. Might be a good idea to give then a call to verify.

BillyGoatCrawler
04-07-2017, 1:14 PM
Mongoose -- I have seen on another forum that someone called and barnes said the 100 gr 6.5mm needs 1800fps to expand properly.

I'm going to try the ladder again with a clean bore, about 6-7 foulers, and then run my ladder. I'm also going to use my Hornady brass instead of my lapua since the lead free stuff will be used for hunting and chance of losing brass is higher.

MongooseV8
04-07-2017, 9:07 PM
Yeah losing a piece of Lapua brass stings lol.