7mm Rem Mag vs 300 Win Mag

I am considering a new multipurpose, do all, bolt action rifle in a magnum cartridge and debating between the 7mm or the 300 win mag.

Reading through the community posts on here, I saw that @Backfire (Jim) has stated that 7mm mag is inherently more accurate than 300 win mag. I would like to understand why. Can anyone help explain?

300 Win Mag can be extremely accurate. I have one in a Sako 90 that shoots sub half minute.

The engineers say the 300 win mag case design has too much slop and loose tolerance to have max accuracy, which is perhaps what I was referring to, but I have not found that theoretical issue to be true in the real world as I see lots of good 300 win mags.

But I would generally lean to a 7 mag because the slightly lighter bullets will usually have less recoil than a 300 win mag and the bc of the 7mm bullets is usually higher.

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That makes sense and I appreciate the explanation/recommendation.

For the rifle, in 7mm mag, I am considering Seekins PH3, Tikka Ace or Sig Cross Sawtooth. Any thought or suggestions on these?

I agree with the 7WM over the 300WM for versatility. The 7PRC and the 300PRC are good choices as well, but currently you get a lot more ammo options with the WMs, while loosing a bit on the BCs. As for the rifles, you’re choosing between 3 different supermodels with amazing personalitites. Choose any one of the three and be you’ll be happy. Personally, I have been really enamored with the Seekins, but in truth it is a little because Tikka and Sig are just more popular and I like to be a little different.

Cannot go wrong on any one of those three. They would all be my top choices. I would have a tough time choosing between them.

Main benefits of each being:

Seekins - support and warranty
Tikka - Buildability and accuracy with Sako ammo
Sig - Proof barrel

Maybe I lean to the Tikka? Too hard to decide.

Thanks Jim and Ben for the insight and recommendation. I truly appreciate it.

Peterson recently came out with Peterson long brass for 7 Rem and 300 win that solves the excessive headspace.

I’ve also considered the Seekins PH3. Does the PH3 have a better stock than the PH2? I remember the review Jim did said the stock left a little to be desired. I can’t tell from the pics on the website and there isn’t a shop close that carries one.

They’re still using those plastic stocks on $2k rifles. Seekins makes good barreled actions but that’s just weird to put it in a plastic stock.

Have not seen the ph3 in the wild yet. Most likely won’t unless I just decide to buy one myself. I do know that with the element M3 that they did improve the stock over the previous element. It’s a little more solid and has a nice M lock rail at the bottom. Looking at the pictures on the website it looks like the ph3 shares the same stock, which is always been the case between the PHS and the elements

Well I agree the ph2, and original element stocks do look a little cheap and feel a little cheap, those guns absolutely work wonderfully

For the cost of the Seekins, you can buy a tikka on sale right now and get a custom carbon fiber stock on sale from pure precision right now for $525 and it’d be an amazing rifle

@llb90ai
I am basically in the process of making the same decision on caliber and rifle.

I am looking at all of the rifles you mention above. Have you considered the Sako 90 Quest or the Fierce Rage?