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#2365802 - 12/20/12 11:06 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: GregH]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
Originally Posted By: GregH
someone on here posted the max fps he obtained as 2900. But....he did not list the powder or charge weight. Screen name may be Siringo if that is any help. He also may have some info on heavier bullets as I think that is his thing, which may not be a bad thing to consider!
Hope this helps!
Greg


Yep --- heavies are my thing. I could not get the 80's to shoot fast enough so I abandoned the whole idea. I also thought that these bullets were designed for larger faster cartridges, so it may not perform well ---- at least that was my uneducated thought. The bullet also is quite long and eats up as much powder space as a 100 grain.

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#2367134 - 12/22/12 11:06 AM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: Siringo]
GregH Offline
Seasoned Member

Registered: 06/12/03
Posts: 247
Loc: Rome, Ga
Good to see you back Siringo. I have tried the LRV powder on 90 grain Sierra HPBTs and got 2900 with 33 grains. The 100 grain Hornady gave me 2702 with 32 grains and no pressure. With my gun it is slow with the normally listed powders but as you stated LRV is good for the heavier stuff!
THanks for the info and what bullet did you end up settling on! I called Barnes and they think the 80 grain TTSX at 2900 should be fine out to 200 yards.
Greg Harrison

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#2367521 - 12/22/12 06:26 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
I've been working with one of Mike's 30 WSSM over the past summer, so I did not do much with the 25 DTI this year. One thing with the 100 bullet speed, when using the Sierra 100 boatail, I got 50 fps more speed than with the Swift 100's. Could this be because of the bearing surface??

I have a few prohunters left and will compare them side by side with the boatails on speed.

GregH - were you using Remington 7 1/2's or CCI 41's?

I also loaded up a bunch of 90's with varying charges and I sure would like to push those to 3000.

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#2367555 - 12/22/12 07:01 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: Siringo]
GregH Offline
Seasoned Member

Registered: 06/12/03
Posts: 247
Loc: Rome, Ga
i have tried both 41's and 7 1/2's. I am going to reshoot some stuff with the 7 1/2's but I think it may be an overall better primer. I showered lower speeds and more pressure with 41's on my last chrono session. I will just have to wait to shoot again before making a final decision. I will post the results.
How is the 30 WSSM working out?
Thanks in advance
Greg

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#2368998 - 12/23/12 11:21 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: GregH]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
I will post something on the 30 WSSM on a seperate thread. Don't want to deviate what has been posted here on the DTI's --- OK.

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#2378527 - 12/31/12 06:53 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
Braved the cold --- put on the wool clothes, mukluks and headed to the range. It was 8 degrees this morning. I wanted to see what my velocities were in this extreme cold with different primers (with my pet deer load).

My base deer load is 32.0 grains of LeverEvolution powder. Note on a previous post that I said I was using Remington 7 1/2 primers. This was not correct and I edited my post. I was using Winchester small rifle primers.

Rifle is 25 DTI, 18 inch. Bullets were Sierra 100 grain BT loaded to 2.26 inches. During my load testing this was sub moa and velocity was 2830 FPS. The temperature at that time was 70 degrees to 80 degrees for the load development.

In contrast -- today is nearly 70 degrees colder than when I developed that load. I do use Quick Load and there is no reference to LeverEvolution in the most recent version. So I fudge with WW748. From 80 degrees to 8 degrees, WW748 loses 100+ fps. SOO --- I kinda figured I would lose something similar with the LeverEvolution.

Using the same bullet (Sierra 100 BT), Powder Charge (32.0 of LeverEvolution) and OAL (2.26), I fired the following:

Remington 7 1/2
1. 2656 fps
2. 2715 fps
3. 2688 fps
4. 2743 fps
5. 2650 fps
AV - 2690 fps
ES - 93 fps
SD - 39 fps
Group - 1" W x 1.25" H

Wolf Small Rifle Magnum
1. 2721 fps
2. 2760 fps
3. 2704 fps
4. 2732 fps
5. 2682 fps
AV - 2719 fps
ES - 78 fps
SD - 29 fps
Group - 1" W x 1.25" H

Winchester Small Rifle (4 shots only, ran out of bullets)
1. 2726 fps
2. 2732 fps
3. 2749 fps
4. 2732 fps
AV - 2734 fps
ES - 23 fps
SD - 9 fps
Group - 3/4" W x 3/4" H

As a side note --- I also shot some Remington Corelok 100 grain bullets. Velocities were about the same --- maybe a little higher, but I seated them to 2.23 inches (at the cannelure) so the pressures were most likely higher. However, group size was twice the size in comparison to the Sierras.

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#2380986 - 01/02/13 01:53 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: Siringo]
GregH Offline
Seasoned Member

Registered: 06/12/03
Posts: 247
Loc: Rome, Ga
Siringo, THanks for the load update. I copied your load of 32 grains of LVR, Rem 7 1/2 primer and a 100 grain Interlock and the average was 2706, don't have the other figures with me, temp would have been about 60 degrees.
I was feeling adventurous,and tried 33 grains of LVR and the 90 grain Sierra BTHP, average 2906 with it! Thankfully it never gets below about 20 degrees on a normal year here. Sounds like with the 18 inch barrel we are stuck about 2700 in hunting weather.
My fastest load with the 75 VMax has been 33.7 grains of TAC for 3060 fps. I tried 322 and Exterminator and such, I suppose each gun is an individual!
Thanks again
Greg Harrison

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#2381184 - 01/02/13 05:17 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
Greg --- pick up some Sierra 100 grain game kings (BT). Use the Winchester small rifle primer. With the 100 grain Remington my average was 2743 -- Using the Winchester primer.

I also shot some 90 grain game kings that day.

33.3 - grs of LV -- 2888 fps
33.6 grs of LV -- 2924 (best group under 1 inch)
34.o grs of LV -- 2931

Used the WSR primer and again it was 8 degrees out.

You are correct that at hunting temps, the best we could see would be in the mid 2700's. Still nothing to sneeze at though.

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#2382739 - 01/03/13 06:33 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: Siringo]
GregH Offline
Seasoned Member

Registered: 06/12/03
Posts: 247
Loc: Rome, Ga
I shot 2 deer this year and performance with the 90 HPBT was okay. At about 2850 neither exited but both at 40 yards into dense muscle on one shot, it was devastating. ON the other , about 125 yard thru the ribs, it broke ribs on both sides and completely severed the top of the heart so yeah the 25 is till prettty robust. Good luck and and thanks for the tips!!
greg

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#2386204 - 01/06/13 12:13 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
venatic Offline
Retired Moderator

Registered: 06/11/03
Posts: 6990
Loc: In the right lane
I have shot 4 whitetail does with my 25 DTi predator load just recently and none have gone more than 20 yards and two dropped in their tracks. The load is 28.7gr of N133 with the 85gr Nosler BT. Speed is right at 2900fps and it is a good load for knocking down coyotes but I have gotten almost all pass-thru's on broadside hits. Bobcats have had quarter sized exits and fox... not too pretty.
_________________________
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963


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#2386540 - 01/06/13 05:20 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
GregH Offline
Seasoned Member

Registered: 06/12/03
Posts: 247
Loc: Rome, Ga
Originally Posted By: venatic
I have shot 4 whitetail does with my 25 DTi predator load just recently and none have gone more than 20 yards and two dropped in their tracks. The load is 28.7gr of N133 with the 85gr Nosler BT. Speed is right at 2900fps and it is a good load for knocking down coyotes but I have gotten almost all pass-thru's on broadside hits. Bobcats have had quarter sized exits and fox... not too pretty.


I figured the 85 BT would be a tad too long but that is what I get for thinking. Glad it worked. I will probably stick with the 75 vmax and 70 BK's since that is what I have a stock of. I tried the Boron Nitride plating but could see no advantage s of yet! hanks for the new load
Good shooting
Greg

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#2386979 - 01/06/13 09:38 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
Originally Posted By: venatic
I have shot 4 whitetail does with my 25 DTi predator load just recently and none have gone more than 20 yards and two dropped in their tracks. The load is 28.7gr of N133 with the 85gr Nosler BT. Speed is right at 2900fps and it is a good load for knocking down coyotes but I have gotten almost all pass-thru's on broadside hits. Bobcats have had quarter sized exits and fox... not too pretty.

Venatic --- what is your OAL with that bullet? Thanks is advance!

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#2386997 - 01/06/13 09:47 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
venatic Offline
Retired Moderator

Registered: 06/11/03
Posts: 6990
Loc: In the right lane
I am loading it to barely fit my PRI magazines at 2.315.
_________________________
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963


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#2389328 - 01/08/13 04:46 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
orrbull48 Offline
Die Hard Member II

Registered: 01/26/07
Posts: 1233
Loc: Amarillo Texas
anyone tried any heavies beyond 80gr on the 6dti?
_________________________
Sitka Gear Ambassador

"I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself"
~D.H. Lawrence

"invisible souls leave 308 holes"

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#2417405 - 01/30/13 09:40 PM Re: Got Some 22DTi/6mmDTi/25DTi/6.5DTI Data Post Here [Re: venatic]
Siringo Offline
Seasoned Member

Registered: 12/05/11
Posts: 102
Loc: Minnesota
This post is related to reloading the 25 DTI, but more to do with powder/gas system when using Lever Evolution Powder.

I recently installed a MGI Mid length regulated gas tube on the 25DTI. I have a medium heavy barrel with a .875 diameter gas block. The past weekend it was quite cold in northern MN (-16 degrees below), and I ended up setting the set screw for the gas regulator at 1 3/4 turns. At this setting it feed, shucked, reloaded and held back on on empty magazine. Cases piled up nicely 3 feet from me. Also, there was no evidence of any swipes on the cases or pressure signs. The load I used was the same as I have posted before with the 100 grain Sierra BT. Lever Evolution is like Superformance in that it has a longer peak pressure duration. Something that mid length and carbine length gas systems do not like. A rifle length system would most likely not have the issues (unlocking too soon).

BTW --- the installation instructions say to open the value 2 1/2 turns and then open more as needed to lock open on an empty magazine. I had to go the other way. ALSO, this really only applies to the use of Lever Evolution Powder, not the other types such as H4895, Tac, ect.

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