quickload program? 300wsm varminter

[longrange223]

any body out there that could run some numbers through their quickload program for me? working with a 300wsm varminter with a 20 twist barrel with a little gain to it on a model 70 magnum action,shooting 73gr of vv550 with a fed 215 match primer & 112 gr bib bullet that is danzac coated,just curious to see what it shows for the numbers on this set up,thx...r

 

[longrange223]

Re: quickload program?

what other questions does it need to know? by the way it's a 28" barrel with 1 in 20" twist

 

[CoverDog]

Re: quickload program?

Corrected 28" barrel results. Other questions ask are: Case capacity H2O, case length, cartridge OAL, bullet length, bullet seating depth.


Cartridge : .300 WSM (CIP)
Bullet : .308, 112, Friction Proofed
Useable Case Capaci: 79.199 grain H2O = 5.142 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 28.0 inch = 711.2 mm
Powder : Vihtavuori N550

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 78 58.40 2854 2026 24922 7274 86.0 1.570
-18.0 80 59.86 2929 2133 26713 7527 87.5 1.519
-16.0 82 61.32 3003 2243 28632 7774 89.0 1.471
-14.0 84 62.78 3078 2356 30689 8012 90.4 1.425
-12.0 86 64.24 3152 2471 32895 8241 91.7 1.380
-10.0 88 65.70 3227 2589 35262 8460 93.0 1.338
-08.0 90 67.16 3301 2710 37790 8669 94.1 1.297
-06.0 92 68.62 3375 2833 40472 8865 95.1 1.258
-04.0 94 70.08 3449 2958 43334 9049 96.1 1.220
-02.0 96 71.54 3523 3086 46393 9219 96.9 1.184
+00.0 98 73.00 3596 3215 49662 9374 97.7 1.149
+02.0 100 74.46 3668 3347 53158 9514 98.3 1.115
+04.0 102 75.92 3741 3480 56900 9638 98.9 1.083 ! Near Maximum !
+06.0 104 77.38 3812 3615 60906 9744 99.3 1.052 ! Near Maximum !
+08.0 106 78.84 3884 3751 65200 9834 99.7 1.022 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 80.30 3954 3888 69808 9905 99.9 0.993 !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 98 73.00 3781 3554 60296 9251 100.0 1.058 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 98 73.00 3348 2788 39490 8985 90.9 1.269

 

[longrange223]

Re: quickload program?

sounds a little slow but it gives me what i want to know til i run it over the chronograph,thx...r

 

[longrange223]

finally got to shoot it over the chrony & i figured about right,2 3-shot groups after a fouler came in at an avg speed of 3892fps with the 73gr load of n550,groups are in the 4's at 200yds,have to do a little tinkering but i think it'll do batter when i play with seating depth a little,overall looks like it's gonna be a shooter.....

 

[TheBlueEyedBear]

That is a very light load for that bullet. I was shooting the 110gr Barnes TTsx with 76gr of N550 and getting 4000fps plus. I have switched to 68gr of IMR 8208 and the speed is pretty much the same with groups shrinking slightly. My 300WSM Varminter is by Richard Franklin with a tight nk (.337) and ZERO free-bore. The barrel is a Bartlein 30", 1-16 twist all in a BAT model 'B' action.
Good luck with your 300WSM; they are great fun to shoot.

 

[longrange223]

i wanted to go over 4000 fps but everyone told me it wrecked the brass & since it wasn't a custom action i shouldn't try to,may try to later on after i see how it does at a distance,you're right about fun to shoot!