Joe Alexander
Member
Anyone had a bullet in .270 that they ve found to be both effective for both deer and fox use. I feel some of the heavier bullets drop quite considerably , although I do enjoy shooting the 130 grain bullets . All the best Joe.
Actually at equal velocity heavier bullets drop less as they have a superior ballistic co-efficient because of their longer length. Gravity being acting equally on all items regardless of their mass.
I'm using 110gr V Max for foxing too (though not deer).
1" high at 100 yards is 1" low at 205 yards out of my Sako A7.
no bc advantages at stalking range shots, text book heart and lungshot only ribs take a bashing, no meat there to damage, if you shoot it in the shoulder it will wreak itActually at equal velocity heavier bullets drop less as they have a superior ballistic co-efficient because of their longer length. Gravity being acting equally on all items regardless of their mass.
130 grain isn't a bad bullet for the 270 Winchester. I think that maybe Winchester about got it right some seventy plus years ago but I favour 150 grain at a slower velocity and others favour the all-around 140 grain option.
But for fox at long range the real requirement is accuracy. One minute of fox isn't very tall unless you take them when they are sitting. In theory a 150 grain bullet zeroed at something like 225 yards will hit fox anywhere out to 275 yards if you hold dead centre.
That is it will rise nor fall more than four and a half inches above or below the aiming point on the reticule. Same with the guidances for zero on many early 'scoped sniper rifles. Set that zero and if you aim for the centre of the face you'll hit your man somewhere in his head.
I used 110gr v max in my old 30 06, was a varget load doing 3440fps, bang on at 100yds dropped 10 inches at 300yds,they would group around 1 inch at 300yds too,150gr bullet drops 13 inches, not a great difference
should be flatter than that, no?
1" 0 and 6-7" at 100, 200 and 300 is standard
Not sure to be honest - what do you think?
As far as i've tested with the 110gr V Max, and being as accurate as field conditions allow i'm:
+1" at 100 yards
0 at 180 yards
-1" at 205 yards
-2" at 225 yards
-3" at 245 yards
-4" at 255 yards
If the above's not in line with conventional thinking, is this due to a short (20") barrel I wonder...?
Would love to chrono things and get a better idea!
Sighting distance in yards | Height of trajectory above line of sight if sighted in at X yards. For sights 1,6 inch above bore | ||||
---|---|---|---|---|---|
50 | 100 | 150 | 200 | 300 yds | |
50 | ⊕ | 0.7 | 0.4 | -1.1 | -7.6 |
100 | -0.3 | ⊕ | -0.7 | -2.4 | -9.6 |
150 | -0.1 | 0.4 | ⊕ | -1.5 | -8.3 |
200 | 0.3 | 1.2 | 1.2 | ⊕ | -6.4 |
Not sure to be honest - what do you think?
As far as i've tested with the 110gr V Max, and being as accurate as field conditions allow i'm:
+1" at 100 yards
0 at 180 yards
-1" at 205 yards
-2" at 225 yards
-3" at 245 yards
-4" at 255 yards
If the above's not in line with conventional thinking, is this due to a short (20") barrel I wonder...?
Would love to chrono things and get a better idea!
most factory ammo shoots slower than exaggerated figures on the boxes, mine were maxload at 3440 fps is flying along, chronying faster than datafactory details
admittedly a little higher at 100 but flat at 200 and only -6 at 300
could be a little slow with a short barrel I suppose. not worth worrying about
Sighting distance in yards Height of trajectory above line of sight if sighted in at X yards. For sights 1,6 inch above bore 50 100 150 200 300 yds 50 ⊕ 0.7 0.4 -1.1 -7.6 100 -0.3 ⊕ -0.7 -2.4 -9.6 150 -0.1 0.4 ⊕ -1.5 -8.3 200 0.3 1.2 1.2 ⊕ -6.4
Using the ballistic program on the Norma website to back-calculate, with the scope at 2.6" above the bore-line these data suggest MV of about 2800fps.