FPS loss per " of barrel?
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bailey1474
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Re: FPS loss per \" of barrel?
Depends on the cartridge, but I think the old rule of some is something like 20 fps. This can be much more on some of the big, overbore mags though.
Depends on the cartridge, but I think the old rule of some is something like 20 fps. This can be much more on some of the big, overbore mags though.
Buffalobob
Well-Known Member
Re: FPS loss per \" of barrel?
Lilja took a barrel and a saw and shot and sawed and shot and sawed and just kept at it.
http://www.riflebarrels.com/articles/bullets_ballastics/long_barrel_velocity.htm
Lilja took a barrel and a saw and shot and sawed and shot and sawed and just kept at it.
http://www.riflebarrels.com/articles/bullets_ballastics/long_barrel_velocity.htm
Re: FPS loss per \" of barrel?
I have a 26" Sendero 300 SAUM and a 22" Model 7 300 SAUM; shooting the same factory ammo the difference is as follows:
150 gr Sendero - 3430, Model 7 - 3200
165 gr Sendero - 3250, Model 7 - 3090
180 gr Sendero - 3130, Model 7 - 2970
Hope this helps.
I have a 26" Sendero 300 SAUM and a 22" Model 7 300 SAUM; shooting the same factory ammo the difference is as follows:
150 gr Sendero - 3430, Model 7 - 3200
165 gr Sendero - 3250, Model 7 - 3090
180 gr Sendero - 3130, Model 7 - 2970
Hope this helps.
ricka0
Well-Known Member
Re: FPS loss per \" of barrel?
[ QUOTE ]
<font color="purple"> Lilja took a barrel and a saw and shot and sawed and shot and sawed and just kept at it. </font>
[/ QUOTE ]
I made a much easier to read graph out of Dan's data. He liked it so much he sent me his code so I could extend the data down to 18" (as alot of guys are shooting 18" 50's). When I get time I'll do so. Graph
Funny the identical URI works with the URL tag but fails with the Image Tag. Are they ever going to fix this hideous bug?
[image]http://groups.msn.com/_Secure/0TgAAAKQXcr7L4ebalMvfkKyaOBFs6bg3tOShgEeCll2Y!afTW6utQotQrI8Rp1YA6U22lH5IlVYuTS77Sxs0PbB1ckHNxJtdYsN6KEKZpCDR*k!jMvrLwQ/Differential_Vel_Gain2.JPG?dc=4675492134890830198[/image]
[ QUOTE ]
<font color="purple"> Lilja took a barrel and a saw and shot and sawed and shot and sawed and just kept at it. </font>
[/ QUOTE ]
I made a much easier to read graph out of Dan's data. He liked it so much he sent me his code so I could extend the data down to 18" (as alot of guys are shooting 18" 50's). When I get time I'll do so. Graph
Funny the identical URI works with the URL tag but fails with the Image Tag. Are they ever going to fix this hideous bug?
[image]http://groups.msn.com/_Secure/0TgAAAKQXcr7L4ebalMvfkKyaOBFs6bg3tOShgEeCll2Y!afTW6utQotQrI8Rp1YA6U22lH5IlVYuTS77Sxs0PbB1ckHNxJtdYsN6KEKZpCDR*k!jMvrLwQ/Differential_Vel_Gain2.JPG?dc=4675492134890830198[/image]
