Shotshell Reloading Cost Calculator
Decimal Version 1.2

Enter your Powder Cost $

For how many Pounds? How many Grains in your Reload?

Enter your Primer Cost $

For how many Primers?  

Enter your Wad Cost $

For how many Wads?  

Enter your Shot Cost $

For how many Pounds? How many Ounces in your Reload?

Enter your Hull Cost $

For how many Hulls How many times will you use this Hull?
Enter the price of a box of Factory Shells in your Area $ Enter the cost of your Reloader $
Component Cost Per Load Cost Per Box Notes
Powder $ $ loads at grains per pounds
Primers $ $  
Wads $ $  
Shot $ $ loads at ounces per pounds
Hulls $ $  Hull will be used times
Reload without Hull $ $  
Reload with Hull $ $  
Savings between per box of reloads and factory loads without hull. $
Savings between per box of reloads and factory loads with hull. $
It will take you boxes of reloads or reloads to pay for the reloader without hull.
It will take you boxes of reloads or reloads to pay for the reloader with hull.

You should include any applicable sales tax and shipping in your cost figures.

To save this program to your computer, click on your browser's
File | Save As and save it to your computer's hard drive.

Ounces to Decimal Conversion

1/2 = .5
3/4 = .75
11/16 = .6875
7/8 = .875
1 = 1.0
1-1/16 = 1.0625
1-1/8 = 1.125
1-1/4 = 1.25
1-3/8 = 1.375
1-1/2 = 1.5
1-5/8 = 1.625
1-3/4 = 1.75
1-7/8 = 1.875
2 = 2.0
2-1/4 = 2/25

 

Calculator provided courtesy of
Trapshooters.com

Reloader's Reference

COMMON SHOT CHARGES (TRUE WEIGHTS) = LOADS PER BAG OF SHOT:
=============================================================

1/2 oz. (218.75 gr.) = 800
5/8 oz. (273.44 gr.) = 639
11/16 oz. (300.78 gr.) = 581
3/4 oz. (328.13 gr.) = 533
13/16 oz.(355.47 gr.) = 492
24 Gram (369.95 gr.) = 472
7/8 oz.(382.81 gr.) = 457
1 oz. (437.5 gr.) = 400
1-1/8 oz. (492.19 gr.) = 355
1-1/4 oz. (546.88 gr.) = 320
1-3/8 oz. (601.56 gr.) = 290
1-1/2 oz. (656.25 gr.) = 266
1-5/8 oz. (710.93 gr.) = 246
1-3/4 oz. (765.63 gr.) = 228
1-7/8 oz. (820.32 gr.) = 213
2 oz. (875 gr.) = 200
2-1/4 oz. (984.38 gr.) = 177
2-1/2 oz. (1,093.75 gr.) = 160

HOWEVER: Charge bars usually deliver less than their designated shot weight, so you'll
likely get a few more loads than those true-weight counts.

If you want to know more exactly how many loads you'll get from what the charge bar
actually delivers, weigh each of 10 drops and divide by 10 to get the average weight
in grains.

Then divide 175,000 by that.

For example: 3/4 oz. is 328.13 grains, but the bar drops an average of 315 grains,
so: 175,000 / 315 = 555 loads, or 22 more per bag than you'd get if the bar actually
dropped a true 3/4 oz.

HANDY FACTS
===========

Bag of shot = 25 lbs. = 400 ounces = 175,000 grains (1 lb. = 7,000 gr.; 1 oz. = 437.5 gr.)

LOADS-PER-BAG FORMULA: 400 divided by Shot Load Weight

Example 1: 1/2 oz. -- 400 / .5 = 800 loads
Example 2: 1-1/8 oz. -- 400 / 1.125 = 355 loads

COMMON RELOADING FRACTIONS OF AN OUNCE TO DECIMAL/GRAINS CONVERSIONS:

1/8 = .125 oz./54.69 gr.
1/4 = .25 oz./109.38 gr.
3/8 = .375 oz./164.1 gr.
1/2 = .5 oz./218.75 gr.
5/8 = .625 oz./273.44 gr.
11/16 = .6875 oz./300.78 gr.
3/4 = .75 oz./328.13 gr.
13/16 = .8125 oz./355.47 gr.
24 Grams = .8465664 oz./369.95 gr. (1 Gram = .0352736 oz./15.43 gr.)
7/8 = .875 oz./382.81 gr.

Shotgun/Shotshell Facts (Image, opens in new window)

Chilled Shot Conversions

Weight Ounces

1/2

5/8

11/16

3/4

7/8

1

1-1/8

1-1/4

1-3/8

1-1/2

1-5/8

1-3/4

1-7/8

2

2-1/8

Weight Grains

219

273

301

328

383

438

492

547

602

656

711

766

820

875

930

Loads Per Lb.

32

26

23

21

18

16

14

13

12

11

10

9

9

8

8

Size

Dia. In.

Approximate number of pellets per load (lead shot only)

BB

.18

25

21

34

38

44

50

56

63

69

75

81

88

94

100

106

2

.15

44

55

61

66

77

88

99

110

121

132

143

154

165

176

187

4

.13

68

85

94

102

119

136

153

170

187

204

221

238

255

272

289

5

.12

86

108

118

129

151

172

194

215

237

258

280

301

323

344

366

6

.11

112

139

153

167

195

223

251

279

307

335

362

390

418

446

474

7

.10

150

187

206

224

262

299

336

374

411

449

486

523

561

598

635

7-1/2

.095

173

216

237

259

302

345

388

431

474

518

561

604

647

690

733

8

.09

205

256

281

301

358

409

460

511

562

614

665

716

767

818

869

8-1/2

.085

240

300

330

360

420

480

540

600

660

720

780

840

900

960

1020

9

.08

293

366

402

439

512

585

658

731

804

878

951

1024

1097

1170

1243



Skeet/Trap Chilled Shot Conversions

Weight Ounces

1/2

5/8

11/16

3/4

13/16

24 Gram

7/8

1

1-1/8

Decimal Ounces

.5

.625

.6875

.75

.8125

.8466

.875

1

1.125

Weight Grains

218.75

273.44

300.78

328.13

355.4

370.4

382.81

437.5

492.19

Loads per bag

800

640

582

533

492

472

457

400

355

Size

Dia. In.

Approximate pellets per load

7-1/2

.095

173

216

237

259

280

292

302

345

388

8

.09

205

256

281

301

332

346

358

409

460

8-1/2

.085

240

300

330

360

390

406

420

480

540

9

.08

293

366

402

439

475

495

512

585

658

Approximate actual pellet sizes -- 7-1/2, 8, 8-1/2, 9: