Pet .22-250 AI loads wanted

[northernchris]

Has anybody got any pet loads for .22-250 AI useing 69 gr match bullets (Nosler 69gr match) ??? Or can Kev run it through quick load for me useing N160


Cheers Chris

[Beer Hunter]

Code: Select all

Cartridge          : .22-250 Ackley Imp.
Bullet             : .224, 69, Nosler HPBT 17101
Useable Case Capaci: 43.677 grain H2O = 2.836 cm³
Cartridge O.A.L. L6: 2.490 inch = 63.25 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Vihtavuori N160

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   93    36.00   2826    1224   35358   9169     85.8    1.323
-09.0   94    36.40   2859    1252   36500   9307     86.5    1.307
-08.0   95    36.80   2892    1281   37671   9444     87.1    1.287
-07.0   96    37.20   2925    1311   38900   9578     87.8    1.269
-06.0   97    37.60   2958    1340   40163   9711     88.4    1.250
-05.0   98    38.00   2991    1371   41469   9842     89.0    1.232
-04.0   99    38.40   3024    1401   42820   9972     89.7    1.213
-03.0  101    38.80   3057    1432   44218  10099     90.3    1.195
-02.0  102    39.20   3091    1464   45665  10223     90.8    1.178
-01.0  103    39.60   3124    1495   47163  10346     91.4    1.160
+00.0  104    40.00   3158    1528   48714  10466     91.9    1.143
+01.0  105    40.40   3191    1560   50319  10583     92.5    1.127  ! Near Maximum !
+02.0  106    40.80   3225    1593   51984  10697     93.0    1.110  ! Near Maximum !
+03.0  107    41.20   3258    1627   53707  10809     93.5    1.094  ! Near Maximum !
+04.0  108    41.60   3292    1660   55484  10918     94.0    1.078  ! Near Maximum !
+05.0  109    42.00   3326    1695   57319  11023     94.5    1.062  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    104    40.00   3338    1707   57937  10822     97.5    1.058  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    104    40.00   2938    1323   40060   9682     83.4    1.251


There you go

Kev.

[northernchris]

Nice 1 Kev that was dam quick

What do you reakon for a fire forming load useing N160 with the bullet on the lands,i was thinking around the 37 gr mark???

PS Can you run me Varget through with the same bullet

[Vermincinerator]

Chris, you will get much better fireforming using what would normally a middle charge weight of fast powder for a standard 22-250, H380 would probably be the best.

Ian

[northernchris]

Spose i could run 35/36 grains of H380 to get them done

[RichardH]

Has anybody got any pet loads for .22-250 AI useing 69 gr match bullets (Nosler 69gr match) ??? Or can Kev run it through quick load for me useing N160


Cheers Chris

I believe Ackley is the man to speak to on this subject

Happy to help

Rich

[northernchris]

Put the BEER down Rich and go to bed