25-06's

[keeki]

someone help me out here. I have 2 25-06's 1 is a Rem.700bdl and 1 is a savage110fp. both have 24" barrels rem is a sporter and sav is a heavy barrel. the question is why is it that with any given load the savage is about 130fps faster than the rem? both are shooting fireformed brass through the same chrony and neither have over 300 rounds through them. Depth of the grooves maybe? Someone help me out here please.

[thomae]

Guesses follow:
Perhaps slight difference in
a. chamber size and shape (might cause variation in pressures)?
b. groove diameter?
c. bore diameter?
d. slickness of the barrel (slight roughnesses, burrs, etc...)?
e. type of metal? (not sure on this one...but different steels may have different coefficient of friction...don't know if that would affect it 130 fps, though)

130 feet per second in only about 88.6 MPH, so perhaps you should only use the Remington from a fast moving car to make up the difference.

[Blue Avenger]

freebore?
number of rounds fired, wear