Home Forums Hunting & Shooting Ask The Gunwriters What's Petzals beef with the 7mm RM?

Run it again with a one sixty deuce.... or the Berg of your choosing... all bullets with excellent field reputations.

In the field, SRM style, it'd sort out pretty quick.... I'd put a little side wager on it...

Using my rifles of standard twist and 24" length for both cartridges,150's for 270 and 160's for 7mm,the difference is 80 FPS avg. on my chronograph.

I think Petzal is right on this one.

The 7mm.advantage in downrange performance comes from the long throated 26" fast twist barrels when shooting 180 VLD's.

Both are great rounds that will keep us loonies burning powder for years to come.

Towsley is the 7mm Mag. hater,not Petzal!

This makes absolutely zero sense. Factory throated, 24" 7mm Rem Mags will run the 162 A-Max and 168 Berger at 3000fps, and the 180 Berger at over 2800fps.

SAAMI throat..."standard" length barrel. Nothing fancy... just good bullets and the right size case.

Tanner

I know what the standard rifle will do Tanner,I agree but, if I were building a 7mm Mag. for the heavies,I'll go for the 1-9 on the re- barrel and cut it @ 26".

Then you have a little more juice than a 270/150 combo that doesn't offer all the LR bullets that the .284 does.

But a 22" .270 will run 150s at 2900.... that's makes it equal to a 162 at 3k.

150 Berger vs. 168 Berger or A-Max = 1.5" difference.

So how many guys are competing at your beloved SRM with sporter weight 7 Mags?

At 400 yards the 270 has 1.5" more drift than the 7RM? I can't have that.

How much extry recoil I got to absorb for this uber-7mm performance at 400y? Do I need to pack around an 8 or 9lb rifle?

Jason

In 8 lb. rifles, a 270/150/2900 vs. 7mm/168/2950 (similar bullet construction to keep things consistent), with appropriate powders to get them there, you're looking at around a 30% increase in recoil energy from the 270 to the 7mm Mag.

For 1.5" less drift at 400 yards, 30% extry recoil with the 7RM seems like a bargain especially if I take a few weeks off between shooting sessions!

Makes me wonder why anyone would bother with a 270?

Jason

two things wrong with this thread. David Petzal and Field & Stream.

nuff said....

What happens when the distance is 300 yards and the wind is 20-25 mph, rather than the "standard" 10 mph used in ballistic comparisons? BC and MV are the trump cards, even when range is short but wind is strong. I'm personally seen the virtues and lack thereof in various cartridge/bullet combos in exactly this type of situation, on targets and fur.

These arguments always bewilder me a bit.

Its the DIFFERENCE between cartridges that justifies having so many of them!

After reading this whole damn thread, I've come to a single conclusion..........


I think I'll just stick with my 7x57

Reading wind is everything, but fellas would rather skullphuck the difference between .500BC and .625 BC

Of course according to some here, but in reality if you have the 270 combo you will be considered gay and people will have doubts about you. On the other hand the 7mm mag combo will allow you to do less with more and that gives the libs ammo to beat you with. Myself I'm just going to make sure I only shoot my 270 and 7 mm Remington Magnum where I can't be seen by the public. The OP needs to get off his butt buy both, use them, gain some personal experience and come to his OWN conclusions based on HIS own experience. Magnum Man

Best post so far..........

No it ain't 'cause like MD said, there isn't that much difference, except at each extreme end, IE 243 and 375.

Most of us could sell at least half of the rifles we own and loose ZERO capability in the field.

Right. I'm with you. So I'll be looking for yours in the classifieds.

You wouldn't know a good post if it bit you on the ass......

If you sold ZERO rifles you would still own ZERO rifles.

That's your lesson for the day.


Travis

The .277" 150 grain Accubond Long-Range is impressive.