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Ruger SP101

Smith and Wesson 632

Taurus M327

Charter Arms Patriot 327

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.327 Federal Magnum - Wikipedia, the free encyclopedia
Ballistic performance

Bullet weight/type Velocity Energy

100 gr (6.5 g) JSP 1,400 ft/s (430 m/s) 435 ft·lbf (590 J)

115 gr (7.5 g) JHP 1,300 ft/s (400 m/s) 431 ft·lbf (584 J)

Test barrel length: 3 1/16"

Compare this to a .38 S&W

.38 S&W - Wikipedia, the free encyclopedia
Ballistic performance

Bullet weight/type Velocity Energy

158 gr (10.2 g) L SWC 767 ft/s (234 m/s) 206 ft·lbf (279 J)

195 gr (12.6 g) L RN 653 ft/s (199 m/s) 185 ft·lbf (251 J)

200 gr (13 g) LRN 620 ft/s (190 m/s) 176 ft·lbf (239 J)

Or a 9mm:

9x19mm Parabellum - Wikipedia, the free encyclopedia
Ballistic performance

Bullet weight/type Velocity Energy

7.45 g (115.0 gr) FMJ 390 m/s (1,300 ft/s) 570 J (420 ft·lbf)

8.00 g (123.5 gr) FMJ 360 m/s (1,200 ft/s) 518 J (382 ft·lbf)

9.1 g (140 gr) FMJ 305 m/s (1,000 ft/s) 419 J (309 ft·lbf)

9.5 g (147 gr) JHP 368 m/s (1,210 ft/s) 643 J (474 ft·lbf)

7.45 g (115.0 gr) JHP +P+ 435 m/s (1,430 ft/s) 704 J (519 ft·lbf)

or a .38 Super

.38 Super - Wikipedia, the free encyclopedia
Ballistic performance

Bullet weight/type Velocity Energy

90 gr (5.8 g) JHP 1,557 ft/s (475 m/s) 485 ft·lbf (658 J)

100 gr (6.5 g) FMJ 1,450 ft/s (440 m/s) 467 ft·lbf (633 J)

115 gr (7.5 g) FMJ 1,395 ft/s (425 m/s) 497 ft·lbf (674 J)

130 gr (8.4 g) FMJ 1,305 ft/s (398 m/s) 492 ft·lbf (667 J)

150 gr (9.7 g) FMJ 1,148 ft/s (350 m/s) 439 ft·lbf (595 J)

Test barrel length: 5"