See what happens when grown-ups leave the room!!
Here are some facts that we know.....
WE have used two different .257 to kill deer at long range..
1st we built a.25-270 ICL Ram (see P.O.Ackley's book) with a 32" barrel,it shot a 108gr jlk vld at 3730fps....no problem...
2nd we built a .25-.300win 40deg.imp with the shoulder pushed back to a 7mm rem mag lth.(.257 wby imp. basically)with a 32' barrel, it shot 108 jlk vld at 4085fps..
The rifle that I'm building right now is a .25-270 wsm 40deg.imp,it should be able to shoot a 115 berger vld around 3800-3900fps...
The numbers through jbm web site come out like this.....
A 115gr. with a b.c. of .522 shot at 3900fps.,S.H. 1.88",33.3deg.f,
50.%hum.,Bar.Pre.29.5in Hg,Alt.1800
At 1000yds...
Velocity...1999.2fps....
Energy.....1020.5ft-lbs
Drop.......-14.7 moa
Wind.......5.3 moa
Lead.......5.4 (moving target at 3mph)
Time in flight.....1.08 sec.
Point blank range...
A 20" target can be engaged out to 611yds with a zero of 519yds.. This means you can shoot a 20" target with your rifle sighted in at 519yds out to 611yds.....Not too shabby!!
TO compare....A 300win.shooting a 210gr.berger vld at 2940fps.....
At 1000 yds.
Velocity....1623.5fps
Energy......1229.0ft-lbs
Drop........-25.3 moa
Wind........6.0 moa
Lead........6.9 ( moving target 3mph)
Time in flight 1.376 sec.
D.C.you ask if the deer that we shot this year were Quick Kills......well D.R.T.(from the 5th marines snipers)DEAD RIGHT THERE!!!! got it all on video tape, be more than glad to show you!!!
P.S. JUST BECAUSE ITS NOT YOUR IDEA, THAT DON'T MAKE IT A BAD ONE!!!!!!!!