Sierra 116 TMK Load Data

[Ryan Avery]

save

 

[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.