difference in .270 and .270 wsm
#2
RE: difference in .270 and .270 wsm
Cartridge
270 Winchester
270 WSM
Bullet Wt. Grs.
130
130
Bullet Type
Ballistic SilvertipĀ®
Ballistic SilvertipĀ®
CXP Guide No.
Game Guide 2 - Light Thin Skin
Game Guide 2 - Light Thin Skin
Barrel Length (in)
-
-
Velocity in Feet Per Second (fps)
Muzzle
3050
3275
100
2828
3041
200
2618
2820
300
2416
2609
400
2224
2408
500
2040
2215
Energy in Foot Pounds (ft-lbs.)
Muzzle
2685
3096
100
2309
2669
200
1978
2295
300
1685
1964
400
1428
1673
500
1202
1416
Trajectory, Short Range Yards
50
-0.2
-0.3
100
0
0
150
-0.8
-0.6
200
-2.8
-2.3
250
-6.1
-5.0
300
-10.7
-8.9
400
-
-
500
-
-
Trajectory, Long Range Yards
100
1.4
1.1
150
1.3
1.1
200
0
0
250
-2.6
-2.2
300
-6.5
-5.5
400
-18.9
-16.1
500
-38.4
-32.8
This from Winchester.com. The wsm is faster and flatter. I have the 7mm wsm and I love it.
#7
Nontypical Buck
Join Date: Feb 2005
Location:
Posts: 1,785
RE: difference in .270 and .270 wsm
ORIGINAL: hurley0816
what besides the casing is the difference? is there a ballistic or trajectory difference?
what besides the casing is the difference? is there a ballistic or trajectory difference?
My brother has a 270 wcf, and his friend has a 270 WSM in the identical gun (Ruger M77 MkII stainless/synthetic). They sight in together every year and swear the 270 WSM recoils 50% more than the 270 wcf. This is based on their perception of the recoil and has absolutely no scientific basis.
#8
Boone & Crockett
Join Date: Feb 2003
Location: Ponce de Leon Florida USA
Posts: 10,079
RE: difference in .270 and .270 wsm
Depending on where you live, availability of an assortment of different kinds of ammo and .270 Rem Core Lok at about $12 a box versus WSM at about $40 a box.
#9
RE: difference in .270 and .270 wsm
I shoot a Browning A bolt .270 short mag and love it. I do agree on the ammo options though. The only ammo I have ever been able to find here is the Win. ballistic silver tip wsm. I'm perfectly okay with it, but I would like to see what a different round would do. I have also found that the 130 grain does much better in my gun than the 150 grain.
#10
Fork Horn
Join Date: Jul 2007
Location:
Posts: 318
RE: difference in .270 and .270 wsm
As far as ammo is concern Ihave beenlucky that my 270wsm likes the 150gr. Winchester Power Points at $26.00 a box. Does not really matter to me because I am going to roll my own. I believe the 270wsm will out shine the 270win when you shoot the heavier bullet like the 150gr. More velosity with a higher BC bullets means flater shooting. Berger is comming out with a .277 cal. 130gr,140gr. and 150gr. all VLD style bullets. They haven't posted them on their website yet but will soon as Walt Beger gets back in town.