270 winchester power point 150 grain vs 130grain

[rosco]

Due to my rfd running out of my usual 130 grn bullets ive picked up a box of 150 grain instead.
My question is what sort of bullet drop am i going to expect at 100 yard compared to tge 130 grain.
Obviously i will re zero to them before using them on live qaurry.just curious

 

[Muir]

None. In all likelihood it will impact higher.~Muir

 

[Cris]

Reasoning to that?

 

[Yorric]

Reasoning to that?

Methinks:-
Heavier bullet,slower, longer barrel time,heavier recoil often = higher bullet strike at short range.

Ian

 

[Muir]

Methinks:-
Heavier bullet,slower, longer barrel time,heavier recoil often = higher bullet strike at short range.

Ian

This.~Muir

 

[takbok]

My 110gr (3450 fps) loads shoot about 1" higher than the 150gr (2850 fps) loads at 100m.

 

[ileso]

100 yards i wouldnt worry much about any drop from one to the other.. its minimal.
But, I would imagine that a heavier slower bullet would land lower on a target than a faster lighter one. Just from imagining that the curve it travels on is less flat than the lighter one so your bullet doesnt travel as far.

Of course this doesnt factor in harmonics or how your barrel reacts to something different and as mentioned even slightly more recoil...

but since you are going to re-zero for the new bullet anyway you could always take a pic of the resulting first round and show us... would be interesting to see.

View attachment 85724

 

[Cris]

This.~Muir

well there you go. Thanks

 

[rosco]

Thanks for the replys so far. Very helpful. Ive got a dozen 130 left so at sompoint next week ile re zero for the 150 . Ile try to remember to take a photo to show difference. Ive been tempted to up the bullet wheight for a while to see the diference especially for stags .

 

[Superoo]

Hornady's ballistic charts (as an example) will show a 130gn point of impact at 100 yards being 1.2" high, whilst a 150gn will impact 1.7" high. Not a lot in it at 100" so if that's where you're going to do your hunting at, no need to re sight in. This is assuming a zero at 200 yards, and then at 300 yards the difference is about 1.5" (6" low for 130gn vs 7.5" low for 150gn). That's a big reason why people love the 270 - it's quite a versatile round.

 

[Superoo]

Not sure what ammo is available in the U.K., but two of the best hunting bullets on large deer (red or Sambar) in Australia are the Woodleigh Protected Points or the Barnes Tipped TSX (TTSX) projectiles. They have very high weight retention after impact and penetrate devastatingly deep ensuring a quick, clean kill. If you're looking to upsize (or even just to improve performance of the 130gn), I would strongly recommend either of these projectiles.

 

[deerwarden]

As above, I've used 130gn TTSX in my 270, and 150gn Barnes TTSX in my 7x57 Mauser on plains game in Africa, up to blue wider beast with far better penetration and knockdown, than the premium soft tips such as Barnes and Sierra I'd previously used. They penetrate deeper, drill through bone and exit the lighter plains game, or end up just under the offside skin on the larger animals. Took a huge Kudo with my BSA 7x57 that walked two steps and dropped, again full penetration to offside skin, and you can eat right up to the wound channel. Fantastic bullet for African plains game. deerwarden

 

[ileso]

I was assuming a 100m(yard) zero .. the 150gr would fall lower if it wasnt zeroed.
zeroed at 200 the 150gr would still be lower at 100 if not re-zeroed. but it will be higher at 100 after its zeroed due to the curve it travels on to get to the 200m mark..

regardless though I think the POI will not make much difference to any deer it strikes...

 

[John Gryphon]

Have used the 150Gr Wins (and some 175`s) on deer for a lifetime,they kill sambar deer emphatically!

Added in a 7mm Mag..I was just illustrating how effective the PP`s are as a bullet on game.

 

[ileso]

175gr in 270win? what bullets are they? damn they must pack a punch! I find 156 to begin being too uncomfortable

 

[rosco]

So as promised i checked the zero with the 150s . Well they 1/4 inch lower at 100 yards compared to the 130s . So nothing in it really . Forgot to take pictures though