Barnes bullets?

Yesterday, 11:48 AM Originally Posted by pisgah They are solid copper, meaning that :

A. they are not as compressible as jacketed lead core bullets; and,

B. since copper is lighter than lead, they are, weight-for-weight, longer than standard lead/jacketed bullets, and have longer bearing surfaces.

These factors mean they generate higher pressures than standard bullets. I would recommend using Barnes data when loading Barnes bullets. It's different because the bullets are.

The Barnes TTSX and TSX bullets have grooves giving them less bearing surface not more

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A 9mm may expand to a larger diamenter, but a 45 sure ain't going to shrink Yesterday, 04:02 PM Originally Posted by pisgah They are solid copper, meaning that :

A. they are not as compressible as jacketed lead core bullets; and,

B. since copper is lighter than lead, they are, weight-for-weight, longer than standard lead/jacketed bullets, and have longer bearing surfaces.

These factors mean they generate higher pressures than standard bullets. I would recommend using Barnes data when loading Barnes bullets. It's different because the bullets are.

Being lighter than lead as noted makes em longer.

Being longer also changes the amt the project into the case. That screws up the pressure cause so much of the bullet is occupying case space.

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Barnes match burner data needed .224

As long as the Barnes bullet has the same profile as the Sierra bullet of the data you found, you can use the same data for your Barnes bullet that they used for the Sierra.

Use whatever OAL that works in your rifle. If it fits, and it the sweet spot for your rifle, and everything goes good, use the OAL that you want. I'm working on a .308 right now, where my OAL is .225" longer than what it says in the manual, but that OAL fits my rifle without touching the lands at all.

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