Sierra 116 TMK Load Data

[Ryan Avery]

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[mtnbound]

REPOSTING TO NEW THREAD.


116 TMK, 2.90coal, 6CM, 16.5” PBB 7.5” twist, Hornady brass, Fed215M.
Left - N555, 42.5gr, 2680av, 22sd
Middle - H4350, 41gr, 2680av, 9.5sd
Right- Staball65, 42gr, 2622av, 12.8sd

 

[mtnbound]

REPOSTING TO NEW THREAD.

The 116TMK, 2.90coal, H4350 - 41.5GR, 6CM 16.5”PBB-7.5”twist, Hornady brass, Fed215m, 2730av, 9.6sd

 

[mtnbound]

REPOSTING TO NEW THREAD.

116 TMK, 2.90coal, 6CM, 16.5” PBB 7.5” twist, Hornady brass, Fed210. 100rds on the 16.5” barrel at this point.

42gr- H4350-AV 2759-SD 1.5- Slight Ejector mark. Drop to 41.5 and fire 10 next time.

44gr- H4831sc- AV 2682- SD 25.

43- N555- AV 2739-SD 14. First shot was the one not hitting the dot, this is the worst test group I have ever had with N555. I will likely redo this.

43gr- Staball65- AV 2745- SD 18- Ejector marks. Drop to 42.5 and fire 10 next time. This is the best group I have ever had with this powder.

47gr - H1000- AV2809- SD 28- Stiff bolt + ejector marks.

 

[KyleR1985]

16” 6dasher .104” freebore Howa Mini factory barrel. All fired as fast as I could shoot steady from bench. 80*F, very windy

Alpha 3x fired brass

116tmk

3x each 2.35” 31,31.5,32gr Lever, 1x each 2.4” 32.5, 1x 33

.150 and .100 off lands, respectively.

All shot at same POA.

31,31.5 bottom cluster, 32 top left 3, 32.5/33 top right impacts.


31: 2510fps avg
31.5: 2525fps avg
32: 2600fps avg
32.5: 2625fps
33: 2675fps


33 felt a little hot. I don’t want to shoot these bullets,but I’d probably load at 32gr, maybe 32.5gr if I could load out at 2.5-2.6”

 

[eric1115]

.243AI 19" factory Tikka 8 twist cut and chambered by Kampfeld, 700ish rounds on the barrel

H1000, BR2, Lapua brass. 2.950 COAL, jumping 0.080+, didn't really get too persnickety with finding exact distance to lands as it's plenty.

Loaded two of each charge weight, ran one batch with the suppressor on and one with the magnetospeed because I'm one of those idiots who still doesn't have a Garmin.

This barrel/chamber has showed pressure earlier than some of the .243AI data that I've seen out there. I'm not too worried about it, as it's been consistent and if I were a barrel cleaner (or willing to load further into pressure signs) I bet I could push it harder. I'd rather have consistency/stability than an extra 50 FPS.

46.0 2723
47.0 2766
48.0 2839
49.0 2926 Light swipe with can on, none with bare muzzle
50.0 2980 More swipe, slightly heavy bolt with can, lighter swipe and lighter (but still slightly heavy) bolt with bare muzzle.

I loaded 10 at 48.0, will report back after I get a chance to shoot. 3/5 went in one .5" group, the other two were less than 1" away so I'm hopeful that the middle of this range is going to shoot pretty well.

 

[PathFinder]

Very similar results to @eric1115 above. These are all pre-production prototypes.

Factory 1:8 twist Tikka 20", 5/8-24 threaded barrel, reamed to 243 Improved 40 with a drill, and throated .075" deeper as well.
Only powder used was H1000. Tested both in Federal and Alpha brass. All CCI200 primers. COAL anywhere from 2.910-2.950. They may shoot slightly better longer, hard to tell any difference.

Pictures are fighting me, but they hold the same ~1.25 MOA out to 900 yards (as far as I've shot them). Orange dots are 10 shots at 100, the larger paper target is 10 at 500.

48: 2800
48.5: 2850
49: 2890
49.5: 2950
50: 3000
50.5: 3010 No ejector mark, light bolt lift

 

[B_Reynolds_AK]

REPOSTING TO NEW THREAD.

116 TMK, 2.90coal, 6CM, 16.5” PBB 7.5” twist, Hornady brass, Fed210. 100rds on the 16.5” barrel at this point.

42gr- H4350-AV 2759-SD 1.5- Slight Ejector mark. Drop to 41.5 and fire 10 next time.

44gr- H4831sc- AV 2682- SD 25.

43- N555- AV 2739-SD 14. First shot was the one not hitting the dot, this is the worst test group I have ever had with N555. I will likely redo this.

43gr- Staball65- AV 2745- SD 18- Ejector marks. Drop to 42.5 and fire 10 next time. This is the best group I have ever had with this powder.

47gr - H1000- AV2809- SD 28- Stiff bolt + ejector marks.

If you want to get a bit more speed from the 16.5” bbl, you might try Ramshot Grand. It was faster and more accurate with the 88 ELd-M’s for me in my last 22 CM with an 18” bbl than with H4350. I plan to use it with my next 6 CM, which will be 16”.
Goal is 2780 fps with the 116 TMK’s.

 

[Q_Sertorius]

Looking far more promising now. Thank you to everyone who gave advice in the other thread.

Tikka T3X
.243 Winchester
20”
1:8” twist
OG-P 6mm suppressor

2800 feet ASL
80 degrees F

H4350 - 40.0 grains
116-grain TMK
COAL - 2.941”
Once fired Hornady brass
Winchester Large Rifle Primers

I can live with this.

No pressure signs. I think the velocity is right around what I want it to be at 2760 fps.

2759 FPS, respectable ES and SD

 

[mtnbound]

If you want to get a bit more speed from the 16.5” bbl, you might try Ramshot Grand. It was faster and more accurate with the 88 ELd-M’s for me in my last 6 CM with an 18” bbl than with H4350. I plan to use it on my next one, which will be 16”.
Goal is 2780 fps with the 116 TMK’s.

That's funny, I had a can of it in my hand when I bought the Lever, and I put it back. Same goal as well, what was your load?

 

[B_Reynolds_AK]

That's funny, I had a can of it in my hand when I bought the Lever, and I put it back. Same goal as well, what was your load?

Sorry, I was all over the place with misinformation on that post.
Of course I meant my 22 Creedmoor and the 88 ELD's, not the 6 CM.
I figure it will work really well for the 116's though in the 6.

You should definitely buy some and test it for us with the 116's though haha.
I won't have my Corax 6 CM for quite a while still.

My load with the 88 ELD-M's and Ramshot:

UM Ace 18” 1/7.5 throated for 88’s.
Alpha OCD 22 CM Brass
Fed 210
45.5g of Ramshot Grand.
3020 fps avg.

 

[mtnbound]

Sorry, I was all over the place with misinformation on that post.
Of course I meant my 22 Creedmoor and the 88 ELD's, not the 6 CM.
I figure it will work really well for the 116's though in the 6.

You should definitely buy some and test it for us with the 116's though haha.
I won't have my Corax 6 CM for quite a while still.

My load with the 88 ELD-M's and Ramshot:

UM Ace 18” 1/7.5 throated for 88’s.
Alpha OCD 22 CM Brass
Fed 210
45.5g of Ramshot Grand.
3020 fps avg.
View attachment 1053032

No worries, I’ll try to grab a jug this weekend and give it a go.

 

[PC356]

18”, PBB 7.5 twist, Tikka 6 Creed
116 TMK, Peterson LRP fired brass bumped 3 thou, 1.915” trim length, CCI 200, 38.4 grains H4350, COAL: 2.850”, DA: +1200 . These suckers hammer. First 2 groups showed swipes at 38.8 gr H4350, still clover leafin.
Keepin em at 2700 for QD. Settled on last group at 38.4 gr.
Had made another post in the 107 load data thread bashin the 116s in this gun. My dumbass was pullin bullets out of the 107 box, dawned on me after about 20 testers for load dev

 

[Deadspace]

First load I’ve tried with my 6 creed. Probably going to take it down a grain and run with it. Had slight bolt lift and ejector marks after the third shot.

Tikka w/ a carbon six 16” 1/7.5 twist barrel
COAL 2.85
Twice fired Alpha brass
210M primers
41 grains of H4350
10 shot group at 1.1ish inches with a 5-8 mph crosswind

 

[coya]

Locked in my zero & trued at 1000 in preparation for bear hunting. Really looking forward to seeing the 116 carnage. Load info is in the photo

 

[mtnbound]

First load I’ve tried with my 6 creed. Probably going to take it down a grain and run with it. Had slight bolt lift and ejector marks after the third shot.

Tikka w/ a carbon six 16” 1/7.5 twist barrel
COAL 2.85
Twice fired Alpha brass
210M primers
41 grains of H4350
10 shot group at 1.1ish inches with a 5-8 mph crosswind

View attachment 1054337


View attachment 1054338

Dam thats a fast barrel for a 16.5", my 42gr load of H4350 only did 2759.

 

[PC356]

First load I’ve tried with my 6 creed. Probably going to take it down a grain and run with it. Had slight bolt lift and ejector marks after the third shot.

Tikka w/ a carbon six 16” 1/7.5 twist barrel
COAL 2.85
Twice fired Alpha brass
210M primers
41 grains of H4350
10 shot group at 1.1ish inches with a 5-8 mph crosswind

View attachment 1054337


View attachment 1054338

Wow, I can’t run near that much powder. Was showing pressure signs at 39 grains and 2.850 COAL w/Peterson fired brass in my Tikka PBB chamber. Not near that speed in an 18” tube either.

 

[FlyingRhino]

Wow, I can’t run near that much powder. Was showing pressure signs at 39 grains and 2.850 COAL in my Tikka PBB chamber.

I'm experiencing the same with my PBB barrel. I'm just using up some Hornady brass I had on hand, so I'm sure that has something to do with the early pressure. But I think I finally settled on 38.5 grains of h4350 at 2.850. I shot 5 at that coal and it looked promising. Going to load more tomorrow and see how they do.

 

[Deadspace]

Wow, I can’t run near that much powder. Was showing pressure signs at 39 grains and 2.850 COAL in my Tikka PBB chamber. Not near that speed in an 18” tube either.

I must have gotten lucky with the barrel. I was getting 2900-2950 FPS with the 109 ELDMs with 42 grains of H4350 and about 2850 with the 115 DTACS. Pretty impressive for a short 16” barrel.