what is the flattest shooting cartridge?
- Thread starter xcaribooer
- Start date
The 30-378 is going to trump virtually all the .30 calibers out there..Lots of horsepower in that, for sure!
Once again @ 500 yards sight in 200 yards 30-378 =
.520 BC 180gr Scirroco @ 3480fps = 2528fps = 2554 ft lbs energy = -27.1"
.588 BC 200gr Accubond @ 3350fps = 2542fps = 2869 ft lbs energy = -27.8"
The 30-378 factory loads I have chronographed are closer to 300RUM velocities though.
.520 BC 180gr Scirroco @ 3480fps = 2528fps = 2554 ft lbs energy = -27.1"
.588 BC 200gr Accubond @ 3350fps = 2542fps = 2869 ft lbs energy = -27.8"
The 30-378 factory loads I have chronographed are closer to 300RUM velocities though.
Yeah, the 30-378 does indeed trump the .30 calibers out there....It's got large capacity and is fast.
I was never interested in the 30-378 or any of the really big .300's because once you see a few moose or deer drop at 450+ yards with a 300WM or 7mmRM (or even 30-06) in the hands of a good shooter,, you see that what is really important is the accuracy of the rifle, the shooter and how he uses his gear more so than a few extra FPS.
I was never interested in the 30-378 or any of the really big .300's because once you see a few moose or deer drop at 450+ yards with a 300WM or 7mmRM (or even 30-06) in the hands of a good shooter,, you see that what is really important is the accuracy of the rifle, the shooter and how he uses his gear more so than a few extra FPS.
pete dobinson
CGN frequent flyer
- Location
- Courtenay BC.
Im a 2nd to that, and 7mm will buck the wind better than most calibers as well, with heavier bullets.
Flat shooting means very little once you get beyond the 270 Winchester.
Just a few yards farther and you are (in one way or another) compensating for bullet drop.
At real long range bullet selection is at least as if not more important than caliber designation. The guy using a 300Ultra loaded with 180gr bullets has nothing over another guy using a 300Win with 200 grain Accubonds.
Wind is the real enemy of the long range hunter.
Long and lean is right...Speaking of which I just heard Barnes is coming out with a new .338 265 grain (or so) TTSX with a BC in the .600's!!!!
Bartel you know anything about that one???
Just a few yards farther and you are (in one way or another) compensating for bullet drop.
At real long range bullet selection is at least as if not more important than caliber designation. The guy using a 300Ultra loaded with 180gr bullets has nothing over another guy using a 300Win with 200 grain Accubonds.
Wind is the real enemy of the long range hunter.
Long and lean is right...Speaking of which I just heard Barnes is coming out with a new .338 265 grain (or so) TTSX with a BC in the .600's!!!!
Bartel you know anything about that one???
Its hard to beat the 7mm. http://accurateshooter.wordpress.co...rld-f-class-championships-usa-f-tr-team-wins/ The 7mm also has the recoil of a 30-06 so it isnt onerous. What 7mm are you building? I have 7mm rem mags and a 7mm wby. Im looking at a 7mm build but havent decided which 7mm. Ill probably go with 7mm rem mag.
Kinda puts thinks into perspective. Unless you're shooting at a critter with a 40" kill zone, a rifle is only as good as the shooter. I would much rather a mild recoiling .270 Win anytime over some magnum mule kicking powder whore.
Interesting, but not many folks shoot 130 gr bullets in their 30 cals. - dan
300 H&H/308 Norma Mag/300WSM/300 Win Mag drop at 500 yards sighted in @ 200 yards =
.520 BC 180gr Scirroco @ 3000fps = 2162fps = 1869 ft lbs energy = -37.1"
My ballistic calculator also has an optimum game weight section these 300 Mag's optimal game weight @ 500 yards is 491lbs and a 180gr 300 RUM is 733lbs the difference is appr 250lbs heavier optimal game weight.
270 Win/WSM = 355lbs
7mm mag's = 351lbs
30-06 180gr = -47" = 207lbs
Now why would the designer of the ballistic program put weight in?
.520 BC 180gr Scirroco @ 3000fps = 2162fps = 1869 ft lbs energy = -37.1"
My ballistic calculator also has an optimum game weight section these 300 Mag's optimal game weight @ 500 yards is 491lbs and a 180gr 300 RUM is 733lbs the difference is appr 250lbs heavier optimal game weight.
270 Win/WSM = 355lbs
7mm mag's = 351lbs
30-06 180gr = -47" = 207lbs
Now why would the designer of the ballistic program put weight in?
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
not a 500 yard bullet that's for sure.
I have been playing with 130's in a 308 but only to make a Wife friendly Deer load
Factory load drop charts are not the way to decide this discussion. BC's are all over the place and many of those cartridges are not used to full advantage.
Cause he is a math geek that doesn't understand that 40lbs or 1400lbs don't meen squat if the bullet can put ugly holes through stuff that leaks blood.
That and I like the ballistics of the STW with 168gr bullets at 3300fps with a G1 BC of .617.
Seems like a lot of people are confusing muzzle velocity with flat shooting.
I've got a 17 Rem that will push 20 grain V-Max's over 4200 fps.
Not really a 500 yard gun though is it.
I'm guessing a big 7 or 30 with a high BC bullet would be the flattest shooting.
I've got a 17 Rem that will push 20 grain V-Max's over 4200 fps.
Not really a 500 yard gun though is it.
I'm guessing a big 7 or 30 with a high BC bullet would be the flattest shooting.
Seems like a lot of people are confusing muzzle velocity with flat shooting.
I've got a 17 Rem that will push 20 grain V-Max's over 4200 fps.
Not really a 500 yard gun though is it.
I'm guessing a big 7 or 30 with a high BC bullet would be the flattest shooting.
I don't know about that your .230 .172" 20gr V-Max sighted in at 200 yards is 26.8" low @ 500 yards velocity is still 2065fts retained energy is 189 ft lbs says your optimum game weight is 5 lbs = marmot...
