Anyone shooting dtacs in a dasher?

[Longranger81]

I’m looking at switching to the dtacs and was winding what the difference in nose ring and not thanks

 

[Bill Norris]

Plan to shoot the 115 gr. DTACs w/NR in my new 6BRX once it arrives.

TUBBS IDEA CONCERNING NOSE RING

The creation of the NOSERING® application was a direct result from hunting experiences of which many excellent impacts “Ran Off” as the result of a nonexpanding DTAC bullet which has virtually no catalyst (other than hitting a bone) to initiate repeatable expansion. This resulted in experimentation using several different approaches with a goal of modifying these very accurate bullets in a way so as to create decisive expansion upon impact.

There were other benefits from cutting a NOSERING® on a DTAC bullet. These include increased uniformity of the drag coefficients not only during supersonic flight but also subsonic velocities.

Our feedback data speaks for itself; Not only does Nosering™ make your DTAC bullet deliver better shot to shot drag uniformity , which results in your vertical groups becoming smaller, but it also allows you to initiate expansive qualities. Takes a great target bullet and makes it a fantastic hunting bullet.

The DTAC with its Closed Nose (pointed tip) will show better shot to shot drag uniformity which will translate into smaller vertical group(s).

For a target shooter this means your DTAC group(s) will become flatter since your specific lot # of bullets that can be characterized as brothers and sisters will after a NOSERING® react more like identical twins. A NOSERING® will result in the bullet BC spreads being cut in half.

The NOSERING® tool allows the hard bullet jacket tip to fail due to stress fracturing on impact and which is driven into the lead core of the bullet. This initiates dramatic bullet expansion.

 

[762willdo]

If this works good on the 115 has my anyone tried it on the Berger 105/109 using the tubb tool or is there a patent issue? Or other issues?

 

[Bill Norris]

If this works good on the 115 has my anyone tried it on the Berger 105/109 using the tubb tool or is their a patent issue? Or other issues?

I believe Tubb will sell his nose ring tool for use on other bullets as well.

 

[sandwarrior]

I shoot 115 DTAC's in my Dasher for F-Class. My load is 33.7 gr. of H4350 for a velocity of 2820 fps, The leade in my barrel is .220" long. That puts the bearing surface at the neck/shoulder junction when the ogive is almost touching the lands.
Pretty much the same with my Berger 115 Hybrids. You'd have to play around with your seating depth to see what works best in your barrel.
On E-targets I'm at 1560 @1000 and @600 I'm at 1896 avg. with an SD of 10.7.

I use the H4350 to create a 'low pressure' load. It's still up there around 50+K but not near as hot as faster powders to get the same velocity. And, my barrel is 28", so I get a longer push using that slower powder.

 

[Liven The Dream]

Will be interested in 600 and 1000 yard information.
I have shot 105 HB at 600 and 1000 yards in a Dasher.
Not sure the D-Tack at 600 would have much advantage?
1000 yes a plus
Shot the old D-Tacks at 1000 in a 6 Remington at 2940 outstanding.. for 1700 rounds ?

 

[sandwarrior]

AT the MI regionals (1K yds.) I was hitting center at 26.35 moa. A very aerodynamic bullet.

 

[Bill Norris]

The 115 gr. DTACs needed @ 12.0 MOA at 700 yds. from zero at 100 yds. with my current load.

115 GR. TUBB DTAC N/R TBN C 2.181 O M 2.814 COL. T/L B S .521 B C .620
POWDER VV-N165 47.2 GR. PRIMER CCI BR-2 .269 BU. LND .271
SEATED @ 2.171 O M 2.804 COL .010 OTL E C V2 T/S -40-
.120 3-SHOT GP. 62 DEG. 34 % REL/HUM 3092 FPS 4 S D 9 E S

 

[sandwarrior]

For my local matches I'm using 3 moa to hit @300 and 6.25moa to hit at 400. For our 600 yd. comps at Negaunee, I have to use 11.25 moa.