tikka t3 varmint 1 in 12

[onelesscharlie]

Hi
Its my first post on her so if this very same question has been asked recently I apologise.

I am reloading the following for my Tikka T3 varmint 223 1 in 12 with no complaints but wondered if anyone had data for a 40g vmax head for this rifle. Use will be foxes only.

Brass - Once fired Lapua Match
Primer - Federal Match
Powder - 26.5b BLC 2
Heads - Hornady V Max 55g

Thanks in advance


Colin

[ovenpaa]

No direct experience however I can give you the theoretical data with QL which would be a starting point, what OAL are you building to?

[M99]

Colin,

I use the 50 & 55 gr Vmax - but not the 40s

I can post the data for my loads if you like as guidance

Mike

[ovenpaa]

For the 40's built to 2.260" OAL. BL-C2 looks a tad slow and this is for a SAAMI Spec so a lower chamber pressure

Code: Select all

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 40, Hornady V-MAX BT 22241
Useable Case Capacity: 26.987 grain H2O = 1.752 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon BL-C2

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   88    23.89   2708     651   25074   6125     71.8    1.083
-18.0   90    24.49   2786     689   26974   6389     73.7    1.054
-16.0   92    25.08   2865     729   29040   6652     75.6    1.024
-14.0   95    25.68   2946     771   31291   6912     77.5    0.996
-12.0   97    26.28   3028     815   33744   7169     79.4    0.967
-10.0   99    26.87   3112     860   36429   7421     81.2    0.939
-08.0  101    27.47   3196     907   39366   7667     83.0    0.908
-06.0  103    28.07   3282     957   42586   7905     84.8    0.876
-04.0  106    28.67   3369    1008   46126   8134     86.4    0.845
-02.0  108    29.26   3457    1061   50028   8353     88.0    0.815  ! Near Maximum !
+00.0  110    29.86   3546    1117   54336   8559     89.6    0.786  !DANGEROUS LOAD-DO NOT USE!

[onelesscharlie]

Thanks for the replies.... at the moment I am using a case length of 1.750 and an overall length of 2.250".


regards


Colin

[ovenpaa]

2.250" gives a marginal change

Code: Select all

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 40, Hornady V-MAX BT 22241
Useable Case Capaci: 26.886 grain H2O = 1.746 cm³
Cartridge O.A.L. L6: 2.250 inch = 57.15 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon BL-C2

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   88    23.89   2713     654   25239   6128     71.9    1.081
-18.0   91    24.49   2792     692   27160   6392     73.8    1.051
-16.0   93    25.08   2872     732   29250   6655     75.7    1.022
-14.0   95    25.68   2953     774   31528   6915     77.6    0.993
-12.0   97    26.28   3035     818   34013   7171     79.5    0.964
-10.0   99    26.87   3119     864   36720   7423     81.3    0.936
-08.0  102    27.47   3204     912   39706   7668     83.1    0.904
-06.0  104    28.07   3290     961   42974   7905     84.9    0.872
-04.0  106    28.67   3377    1013   46567   8133     86.6    0.841
-02.0  108    29.26   3466    1067   50529   8350     88.2    0.812  ! Near Maximum !
+00.0  110    29.86   3555    1123   54910   8555     89.7    0.783  !DANGEROUS LOAD-DO NOT USE!

[M99]

That is quite a short round Colin

Mine sit at 2.300" & 2.305"

Mike

[onelesscharlie]

Hi
Im using that length as it was given to me by a lad that reloads for a very similar rifle.
I have just measured them straight out of a box of Federal V Max 55g and they are showing 2.240 (56.90).
What cartridge length do you use with your OAL of 2.300?

regards


Colin

[M99]

Colin

My cases are trimmed to 1.750" - the reason I came to this length was from using a "shed OAL" gauge and then working back slowly to find the most accurate length from the OAL gauge - this gives me .005" off the lands and in my remi 700 it really does shoot one hole groups at 100 yards. (I use H322) (19" heavy Barrel, cut and re-crowned by Stuart @ Osprey Rifles, with a target crown)

Mike

[onelesscharlie]

Perhaps I will try increasing the OAL in .005 increments and see what happens.
Thanks again for you help.

Colin