FOREST AND STREAM 
129 
\ 
tion. For these reasons the bore of weap¬ 
ons intended for smokeless powder is 
smaller than for one that is intended for 
black powder. Low pressure smokeless 
powder made expressly for revolver pur¬ 
poses gives the same ballistic results as 
black powder but high pressure smokeless 
powder as we said before must be handled 
with care. 
Is there any difference in the action upon 
a fine gun barrel of the residue from 
smokeless powder or ordinary black pow¬ 
der? I have heard it stated repeatedly 
that the picric acids in smokeless powders 
destroy gun barrels which are not given 
constant care. J. H., Geneva, Ala. 
Answer: Neglect is the principal danger 
to gun barrels. Picric acid may be a con¬ 
stituent of some foreign powders but all 
modern smokeless powders of American 
manufacture with which we are familiar are 
composed of nitro-glycerine or nitro-cellu- 
lose or a combination of both and do not 
contain picric acid. 
There is no appreciable difference be¬ 
tween black powder and nitro-cellulose or 
nitro-glycerine smokeless powders as far 
as their action upon gun barrels is con¬ 
cerned. 
What is your opinion of telescope sights 
for small caliber rifles? I have hunted 
squirrels for many years with a single shot 
.22 caliber Winchester. The gun has been 
in use for over twenty years but has had 
good care and is I believe as accurate as 
ever, but my eyesight is failing and I no 
longer am able to locate the head of a squir¬ 
rel through a buckhorn sight. 
H. W. F., Uniontown, Ky. 
Answer: By all means get a telescope 
sight of not over four or five diameters. 
The tendency is usually to get them too 
strong. With a telescope sight you can aim 
more accurately, and not only will you be 
able to locate a squirrel’s head, but it will 
also be found very useful to locate game 
that otherwise would escape detection. 
MIGRATORY BIRD ACT AND REGU- 
LATIONS STILL IN FORCE. 
The Department of Agriculture has re¬ 
ceived inquiries from sportsmen in various 
parts of the United States as to the effect of 
the ratification of the treaty between the 
United States and Great Britain in refer¬ 
ence to migratory birds upon the Migratory 
Bird Act of 1913 and the regulations issued 
thereunder. In response the Department 
has made the following public announce¬ 
ment: In the opinion of the Department, 
the Migratory Bird Act and Regulations 
are still in force; also these will continue 
in operation, and the Department regards 
it as its duty to enforce them, pending the 
enactment by Congress of new legislation 
for the purpose of carrying out the pro¬ 
visions of the treaty. 
They Look When They Get Away, 
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The birthplace of 
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—Independence 
Hall, Philadelphia 
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