There have been many wildcat discussions here in the past...how's this for new cartridges based on the Lapua case for a custom hunting rifle series? Comments and info more than welcome!
Assume that all will have 30" custom match barrels and weigh about 13.5 pounds, without scope, rings, bases or sling...
1. .257-338 Lapua mag, improved 40* (using 115gr TripleX or 115gr VLDs, even new swift scirocco!) Or 6.5mm-338 Lapua Improved 40* (using 130gr TripleX or 140gr. VLDs, even new swift scirocco!)
For deer, antelope etc... Should achieve higher velocities than even the .257STW or similar...<img src="/ubbthreads/images/graemlins/shocked.gif" alt="" /> Are current powders able to provide the correct burn rate to fill that case up and give you the velocity you'd want at a pressure you can live with?
2. 7mm-338 Lapua mag, improved 40* for mulies, sheep, etc... This should achieve higher velocities than the 7mm Rem. Ultra Mag, but with longer case life and greater accuracy potential (better brass).
3. 30-338 Lapua mag, improved 40* for elk, moose etc... Higher velocity, longer case life and greater accuracy potential than the 300RUM or Warbird...
4. 375-338 Lapua mag, improved 35* for grizzly, African game etc... The 375-338 Lapua should have longer case life and achieve better accuracy than the 375RUM due in part to better brass cases.
Any thoughts on this?
Yes, they are wayyy more than needed for your typical hunting rifle...but the 30" barrel and sub-1\2MOA accuracy of a custom rifle, along with heavier weight (to tame recoil slightly) should make for an interesting discussion <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />
BTW, can you tell it that I have cabin fever?! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Assume that all will have 30" custom match barrels and weigh about 13.5 pounds, without scope, rings, bases or sling...
1. .257-338 Lapua mag, improved 40* (using 115gr TripleX or 115gr VLDs, even new swift scirocco!) Or 6.5mm-338 Lapua Improved 40* (using 130gr TripleX or 140gr. VLDs, even new swift scirocco!)
For deer, antelope etc... Should achieve higher velocities than even the .257STW or similar...<img src="/ubbthreads/images/graemlins/shocked.gif" alt="" /> Are current powders able to provide the correct burn rate to fill that case up and give you the velocity you'd want at a pressure you can live with?
2. 7mm-338 Lapua mag, improved 40* for mulies, sheep, etc... This should achieve higher velocities than the 7mm Rem. Ultra Mag, but with longer case life and greater accuracy potential (better brass).
3. 30-338 Lapua mag, improved 40* for elk, moose etc... Higher velocity, longer case life and greater accuracy potential than the 300RUM or Warbird...
4. 375-338 Lapua mag, improved 35* for grizzly, African game etc... The 375-338 Lapua should have longer case life and achieve better accuracy than the 375RUM due in part to better brass cases.
Any thoughts on this?
Yes, they are wayyy more than needed for your typical hunting rifle...but the 30" barrel and sub-1\2MOA accuracy of a custom rifle, along with heavier weight (to tame recoil slightly) should make for an interesting discussion <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />
BTW, can you tell it that I have cabin fever?! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />