A couple of quick questions about Ballistic Tip 6mm bullets

[vermont2nd]

I am loading the 6mm Ballistic Tip 80gr spitzer bullets for 243 Win. and will be using H4895. Does anyone know what the max load for that powder/bullet combo is? I'm not looking to load to max load, but want to know what it is, so I can use caution if I approach it.

And lastly, what is the BC for that bullet?

Thank you in advance for the help.

 

[Antelope_Sniper]

Nosler #6 list 39gr as the max load for IMR4895 and an 80gr bullet. H4895 is a little colder the IMR4895.

 

[vermont2nd]

Does that 39gr max load show a muzzle velocity of 3300 FPS? The info shown at the nosler.com site lists 39gr, but unfortunately doesn't give a max load. http://www.nosler.com/index.php?p=15&b=6mm&s=133

Could I trouble you for a similar load using Varget? Perhaps 3200 FPS, and 3300 FPS; assuming that the load hasn't maxed out before 3300 FPS.

Thanks for the quick reply Antelope_Sniper; I think I'm going to enjoy this forum. :grin:

 

[JD338]

vermont2nd

Welcome to the forum, glad to have you here with us.

Here is the load data directly from Hodgdon.
http://data.hodgdon.com/cartridge_load.asp
The Nosler 80 gr BT has a BC of .329

Use this link for a ballistic calculator, go to advanced calculator
http://www.biggameinfo.com/BalCalc.aspx

JD338

 

[vermont2nd]

JD338, thanks for the links. Although the Hodgdon site doesn't specifically list the 80gr Nosler bullet, I can extrapolate with the data from that site. Thanks for the BC info as well.

Another good free ballistic calculation site, if you've never tried it, is JMB Ballistics. It provides links to most of the bullet Mfgs so you can input the BC into the calculations. Link: http://www.jbmballistics.com/~jbm/cgi-bin/jbmtraj-5.0.cgi

Thanks for the welcome.

 

[FOTIS]

Cartridge : .243 Win.
Bullet : .243, 80, Nosler BalTip 24080
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Hodgdon H4895

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.0% 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

-30.0 59 26.60 2256 904 20062 6426 89.4 1.643
-27.0 62 27.74 2339 972 21931 6771 91.3 1.592
-24.0 64 28.88 2421 1041 23959 7104 93.1 1.543
-21.0 67 30.02 2503 1113 26156 7422 94.6 1.495
-18.0 69 31.16 2584 1186 28537 7722 96.0 1.449
-15.0 72 32.30 2665 1261 31116 8001 97.2 1.406
-12.0 75 33.44 2744 1338 33902 8257 98.2 1.364
-09.0 77 34.58 2823 1415 36870 8488 99.0 1.323
-06.0 80 35.72 2900 1494 40050 8692 99.5 1.274
-03.0 82 36.86 2976 1573 43474 8868 99.9 1.228
+00.0 85 38.00 3050 1652 47157 9013 100.0 1.183
+03.0 87 39.14 3123 1732 51119 9138 100.0 1.142
+06.0 90 40.28 3194 1812 55382 9258 100.0 1.102 ! Near Maximum !
+09.0 92 41.42 3264 1892 59970 9375 100.0 1.065 !DANGEROUS LOAD-DO NOT USE!
+12.0 95 42.56 3332 1973 64908 9487 100.0 1.030 !DANGEROUS LOAD-DO NOT USE!
+15.0 97 43.70 3400 2053 70226 9595 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!

 

[vermont2nd]

Cartridge : .243 Win.
Bullet : .243, 80, Nosler BalTip 24080
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Hodgdon H4895

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.0% 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

-30.0 59 26.60 2256 904 20062 6426 89.4 1.643
-27.0 62 27.74 2339 972 21931 6771 91.3 1.592
-24.0 64 28.88 2421 1041 23959 7104 93.1 1.543
-21.0 67 30.02 2503 1113 26156 7422 94.6 1.495
-18.0 69 31.16 2584 1186 28537 7722 96.0 1.449
-15.0 72 32.30 2665 1261 31116 8001 97.2 1.406
-12.0 75 33.44 2744 1338 33902 8257 98.2 1.364
-09.0 77 34.58 2823 1415 36870 8488 99.0 1.323
-06.0 80 35.72 2900 1494 40050 8692 99.5 1.274
-03.0 82 36.86 2976 1573 43474 8868 99.9 1.228
+00.0 85 38.00 3050 1652 47157 9013 100.0 1.183
+03.0 87 39.14 3123 1732 51119 9138 100.0 1.142
+06.0 90 40.28 3194 1812 55382 9258 100.0 1.102 ! Near Maximum !
+09.0 92 41.42 3264 1892 59970 9375 100.0 1.065 !DANGEROUS LOAD-DO NOT USE!
+12.0 95 42.56 3332 1973 64908 9487 100.0 1.030 !DANGEROUS LOAD-DO NOT USE!
+15.0 97 43.70 3400 2053 70226 9595 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!

Excellent, thank you. What program did you use for your data? My original intent was to start with 39gr and bracket it in .2gr increments up and down from 38.8 (38.2-39.4) and go from there. It's nice to see that is well within estimated ranges.

Thanks all, I appreciate the help. I'm a member of a few other sites, but none so quick to help.

 

[Larry in SD]

Not an 80gr. Nosler Ballistic Tip but I have loaded quite a few 80gr. Speer Hot Core Spitzers over the years in the .243 Winchester using H-4895. When I first started loading this bullet with H-4895 the various manuals I checked listed max charges with H-4895 with 80gr. Bullets from 36 to 38 grains. I always found my accuracy and what I consider max pressure at 38.0grs. of H-4895 with the 80gr. Speer Hot Core Spitzer (Flat Base) Bullets. I never did chronograph that load in a .243 Rifle but in a 15" T/C Encore .243 Winchester Handgun that load printed 3/4" or less 5 shot groups consistantly at 100 yards from the bench at 2920 FPS.

I have used the 80gr. Nosler Ballistic Tip in a 15" 6mm T/CU Handgun, as well as the 80gr. Speer Hot Core Spitzer. In the 6mm T/CU I used the same load for both bullets and if I remember correctly the velocity was real close to the same.

Larry

 

[FOTIS]

http://www.neconos.com/details3.htm

 

[Ridge_Runner]

Hodgdon #27 states
min. load 35.0 gr H4895 3123 fps 45,800 cup
max. load 38.0 gr H4895 3307 fps 50,100 cup
this is with an 80 gr. sierra BTSP
RR

 

[coyotetrapper]

my best groups came from using varget and those 80 grain bullets, but remember these are still a varmint jacket bullet, the main reason I switched to 95 nosler BT's they hold together better on coyotes and anything bigger in case you hit bone!