25 RPM

[dan belisle]

I see what you mean, but those would be lead cored. The monos tend to be quite a bit longer than their similar weighted lead cored counterparts...Barnes recommends 1-9" for their 115gr TSX for example

I've run 115 gr X bullets in my 1-10 twist 25's, with some success. How much longer is the contact shank on the 117's? - dan

 

[Hand Skills]

Hi Dan,

The 115gr TSX is 1.228" in length it is a flat base bullet which helps keep the length down. It also doesn't have a polymer tip, which adds length as well

I can't find a length in the 117gr, hopefully someone can chime in there

For reference though, the 101gr LRX is 1.208" length - the boat tail, more aggressive ogive and the tip all contribute to extra length.

Here is a stability calculator if you'd like to run the numbers.

https://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi

S.G. of 1.0 is stable in flight, some have shown that increasing S.G to 1.5 can help maintain straight-line penetration when it comes to terminal performance and reduce the possibility of deflection/tumbling on impact, especially with lead free bullets.

 

[Joel]

Hi Dan,

The 115gr TSX is 1.228" in length it is a flat base bullet which helps keep the length down. It also doesn't have a polymer tip, which adds length as well

I can't find a length in the 117gr, hopefully someone can chime in there

For reference though, the 101gr LRX is 1.208" length - the boat tail, more aggressive ogive and the tip all contribute to extra length.

Here is a stability calculator if you'd like to run the numbers.

https://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi

S.G. of 1.0 is stable in flight, some have shown that increasing S.G to 1.5 can help maintain straight-line penetration when it comes to terminal performance and reduce the possibility of deflection/tumbling on impact, especially with lead free bullets.

Interesting tool!

Didn't know about the 1.5 recommendation for straight tracking etc

 

[dan belisle]

Hi Dan,

The 115gr TSX is 1.228" in length it is a flat base bullet which helps keep the length down. It also doesn't have a polymer tip, which adds length as well

I can't find a length in the 117gr, hopefully someone can chime in there

For reference though, the 101gr LRX is 1.208" length - the boat tail, more aggressive ogive and the tip all contribute to extra length.

Here is a stability calculator if you'd like to run the numbers.

https://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi

S.G. of 1.0 is stable in flight, some have shown that increasing S.G to 1.5 can help maintain straight-line penetration when it comes to terminal performance and reduce the possibility of deflection/tumbling on impact, especially with lead free bullets.

Thanks. Guess I'll have to go find some and give them a whirl. - dan

 

[dan belisle]

Hit P&D and Cabelas/Bass Pro, no luck so far. Still, an afternoon in gun shops is always a good day. - dan