EIFLE BARRELS, .30 CALIBER.
90
No. 10296.
Section marked M 3 B. Annealed by residual heat.
Pressure per square inch.	Barrel section.		Remarks.
	Diameter.	Expansion.	
Pounds. 16.300 24,450 28,520 32,600 34,640 36,670 38,710 40,750 16.300 42,790 44,820 46,860 48,900 50,940 52,970 55,010 57,050 59,090 61,120 16.300	Inch. 0.980 .980 .980 .980+ .980 + .980+ .980+ .980+ .980 .980+ .981 .981 .981 .981 .981+ .982+ . 937+ .991 .995+ .994+	Inch. 0. 0. 0. 0.+ 0.+ 0.+ 0.+ 0.+ 0. 0.+ .001 .001 .001 .001 .001+ .002+ .007+ .011 .015+ .014+	%
No. 10297.
Section marked M 3 B. Annealed by residual heat.
Remarks.
Pressure	Barrel section.	
inch.	Diameter.	Expansion.
Pounds.	Inch.	Inch.
16,300	0.980	0.
24,450	.980	0.
28,520	.980+	0.+
32,600	.980+	0.+
34,640	.980+	0.+
36,670	.980+	0.+
38,710	.980+	0.+
40,750	.980+	0. +
42,790	.981	.001
44,820	.981	.001
46,860	.981	.001
48,900	.981+	.001 +
50,940	.982	.002
52,970	.985	.005
55,010	.988+	.008+
57,050	.992	.012
59,090	.994+	.014+
61,120	.997+	.017+
16,300	.996+	.016+