y_not5

here is the deal, I cant figure out how to use ballastic calculators, I would like to know what my load is preforming at, if I should up it, or what just general info energy,high roughly at certain yards etc, here is the load I am shooting and currently sighting in.. 2 triple7 50 grain pellets, 209 primer (kleenbore and regular),hornaday 250 sst, and TC 250 shockwave , out of a 26" barrel sidekick..if there is any info I am forgetting in order to come up with the calculation please let me know, my main intrests are POI's amd energy at longer ranges, I got nice groups at a 100 yards this weekend I am gonna try punching some longer shot on paper but want to know if its worth cause if I dont have the power to knock a deer down over 150 yards then no use practicing it...yes I know its a tough shot, shooting long range with a ML, but I practice a great deal now (I am bitten by the BP bug) and am shooting several times a week now so practice is not an issue..

cayugad

Range
Velocity
Impact
Drop
ToF
Energy
Drift

14[font=arial]15
1785
-0.5
20[font=arial]21
22[font=arial]23
1769
2627

2829
1708
0.81
0.44
0.05
1619
0.59

50
1638
1.38
1.62
0.09
1489
1.08

75
1570
1.13
3.62
0.14
1368
1.89

100
1505
74[font=arial]75
6.5
0.19
1257
3.04

125
1442
-2.1
10.35
0.24
1154
4.56

150
1383
-5.24
15.24
0.29
1062
6.44

175
1328
-9.52
21.27
0.35
979
8.71

200
1277
-15.04
28.54
0.4
905
11.36

225
1229
-21.88
37.14
0.46
839
14.4

250
1185
-30.17
47.18
0.52
780
17.82


according to my book the projectile is cranking out at 1785fps from the muzzle. At 100 yards, your still moving at 1505 and have 1257 in energy which is plenty. At 150 yards you've slowed down to 1382 and the energy has dropped to 1062 which is well above the number of 600 - 800. At 200 yards your zooming along at 1277 and the energy is still at 905. Finally at 250 yards you have reached 1185 in speed but are still at 780 for energy. With the right shot placement there is no reason why that load would not kill a Whitetail all the way out to 250 yards. I'm sorry the charts do not seem to post well, but I will do my best.. Hope this helps.

cayugad

If you want to see some really scary numbers, run a roundball sometime. If people were to judge a bullet by all the magic number of you need this much energy, and this much speed, etc. Most roundball loads would be out of gas by 75 yards, and 100 yards would be out of the question ... if the ballistics numbers someone gave me for the B.C. of a roundball are correct..

Shot placement will bring your animal down a lot faster then getting all concerned about how much power do I have and how much speed.. Although they are good indications of your load and I can understand your interest...

y_not5

thanks thats awesome, I would never temp a 250 yards shot even with practice, but I am gonna shot alot at 200 and under I just wanted to make sure it was worth it, practicing those distances, would bumping my projectile weight be benificail or should I stick with what I got, should I go to 270-290 grain bullet??

sabotloader

y_not5

I am making some assumptions to come up with this ballistic sheet for you....

I am assuming you a re using a scope
I do not know your elevation sp I am using 2500 feet
With a 100 grains of loose t7 I am shooting the 250at 1750 fps average
I am using a temperature of 38 degrees
No crosswind and no up or down angle on the shot

If I need to make any changes let me know

sabotloader

y_not5

I shoot 300 grain .458 (45-70) Nosler Partitions at elk, but I think the 250/260 grain bullet is the best all-around bullet for the 50 cal there is. Less drop - more energy down range - more velocity

I am currently working with the Speer Gold Dot 250 grain HP - it's accuracy is great and if what I read nad what I have been told are accurate it could be a great deer game bullet...

just my thoughts..

little-d

my brotherinlaw is a western old timer black powder shooter,long distance that is. The loads he shoots from one of his frontloaders is like hearing about the stories you hear from the new age long distance high power wildcat rounds. To simulate the shooting of bison at ranges at and beyond 1000 yards he makes a dummy bison out of a 55 gallon plastic drum filled with wet sand with anew 2x3 1/2 inch plywood section in the middle of the sand. Place in the sand small paint stiring sticks next to the inside of the barrel entrance side.He thinks your load of 2 777 pellets and a209 primer fired from a 26 in barrel and a soft pointed 250 gr bullet would penetrate all the way to the plywood and stop from the200 yard distance,at 100 yards you would penetrate the plywood. HE said going by his table you should up your charge to 100 grs. of loose 777 using the hotest primer you could use ,he even suggest using a musket primer if your able,change your bullet to a soild lead BULLET of at least 300 grs,or a sabot 300 gr soild bullet no soft point.This load at 250 yards would penetrate the plywood and more,with a knockdown power strong enough to rock the barrel. He said when you get good enough to hit a 2 foot square at 500 yard with the 100 grs of loose 777 powder or a120 gr load of pryo or blackpowder with the biglead bullet you will still penetrate the plywood.He said the purpose of penetrating the plywood is what it would take to drop a bison without causing movement of the herd. I shot his big gun which is the same gun as a hawken with a 30 in barrel with a 12 inch peepsite,using 100 grs of black powder and a musket primer and a 345 BULLET FROM A LEE MOLD with a felt wad under the bullet,i shot the barrel at a range of 500 yards using the peepsite and got lucky enough to hit the barrel on the right side less than a inch from air it ripped a gash about 6 in long and went into the sand pile i think i shut my eyes atthe time i shot. When he shot he hit middle 8 in high ,he said that would have given him another 75 to 100 yards before dropping below the killing zone.The bullet MUSHROOMED and made it about 2in. past the plywood.

eldeguello

There is a basic problem in trying to provide you with a good answer because all rifles are individuals, and yours may or may not provide close to expected muzzle velocities with the powder and bullet combinations you are using. In other words, unless we know the ACTUAL MV of your loads, we can't calculate probable downrange results, and neither can you.

What you have to do to get the answers you want is one of two possible alternatives:

A: Chronograph the performance of your load - get the real MV!, then use the charts. or,

B: Shoot your gun using the load you chose at all ranges within which you are willing to take a shot at a game animal, and SEE where the bullet strikes when the gun is zeroed as you have chosen to sight it in.

Either way, you'll have to burn some more powder!

(I believe the load you are using now will give adequate terminal performance on deer out to at least 150 yards, IF it hits them in the right spot!)

y_not5

ok now judging by these numbers what should I sight in at , to give me a pretty basic point and shoot at a good distance with no guesing, would zeroing at 25yard give me a good POI out to around 130 yards, with just a put the cross hairs in the boiler room type of scope setup, I am using a bushnell banner Dusk till dawn 3x9x40 on my gun..

sabotloader

y_not5

If'n it were me: and you are using a scope 7 100 grains of pellets - either Pyro or t7 ---

1/2" high @ 25 yards
1 1/2" high @ 100 yards

or if you choose about 2" high at 75 yards...

if all things are equal from there that will give you a pretty good point blank range to about 150 yards - BUT you rally need to shoot the ranges to be sure.