Moderator: MudBug
rohk wrote:ok, shot test loads today and with good chrono readings I can safely say 200's are the end of the lilgun effectiveness for my gun. never broke 2700, came close.
Hoot wrote:rohk wrote:ok, shot test loads today and with good chrono readings I can safely say 200's are the end of the lilgun effectiveness for my gun. never broke 2700, came close.
2700 is 3237 ft/lb of muzzle energy and a TKO factor of .512, which is incredible force. If they shoot accurate, that would be an excellent go-to load for all CXP2 and most, if not all CXP3 game.
Hoot
wildcatter wrote:Hoot wrote:rohk wrote:ok, shot test loads today and with good chrono readings I can safely say 200's are the end of the lilgun effectiveness for my gun. never broke 2700, came close.
2700 is 3237 ft/lb of muzzle energy and a TKO factor of 512, which is incredible force. If they shoot accurate, that would be an excellent go-to load for all CXP2 and most, if not all CXP3 game.
Hoot
Got that right, I ran the numbers and came out with significantly more TKO than a mag loading from a 250gr .338wm. TKO of 34.9 vs 32.6 for the 338wm..
..t
Hoot wrote:...snip...
I use the term TKO synonymously with Efficacy as defined as:
"Efficacy is a measure proposed by L. Neil Smith. It is defined as energy in foot pounds multiplied by projectile cross-sectional area in square inches. Neil says that this is a pretty good indicator of the relative efficacy against live targets of different projectiles and loads. In an email about this page, Neil wrote, "I'm not absolutely certain of its applicability to rifles (although it looks pretty good and is fine for slugs and rifles like .45/70). There are other factors at work above 2000-2500 feet per second. But every year that passes convinces me more that this is the perfect program for predicting handgun performance."
Hoot
Hoot wrote:Diameter is a component of cross sectional area, so you'd think that they would track linearly.
rohk wrote:ok, puttin the 160's on hold till i get a faster powder, got a best group of 1.232" at 51 grains lilgun top speed 2690 fps. I think they can go faster.
I got some Hornady .451 200 gr HP XTP gonna see how they hold up.
Return to Reloading for the 450b
Users browsing this forum: No registered users and 196 guests