Why Isn't the 7mm more popular? 7mm Rem Mag vs .300 Win mag

[sprice]

Why isn't the 7mm mag more popular? At my local stores it's the same price or cheaper than .300 ammunition, it goes subsonic at greater distant, match bullets have a greater ballistic coefficient, and they retain more energy past 1000 yards. I hear they don't kick as much as well.

Should I get a rifle with detachable magazines in 7mm or in .300? I haven't seen a lot of guys who make long range rifles in 7mm or magazines that will fit the 7 (as far as I know accuracy international only makes .308, .300, and .338 right?).

If you have any pictures of your 7mm or .300 rifles then please share!

PS: This would be a general purpose rifle; 13 pounds + suppressor. Mainly targets over 1000 for fun. Most shots would be over 500. I would use it for hunting (mostly mule deer or pronghorn) out to 900.

 

[redneckbmxer24]

230gr w/.743 BC > 180gr w/.674 BC. That's part of the reason. There's also a lot more 30 cal bullet choices and 300WM factory match ammo. AFAIK custom loaders like copper creek are the only options to get 7mm match ammo without loading your own.

Remington was chambering the 700P in 7mmRM for a while but discontinued it.

 

[Engine 22]

What he said^^ . I have history with the .300WM, as my first centerfire rifle is chambered in it. I've dropped many deer with it over the years and will always have one in my line-up. I roll my own, so the ammo is not an issue. You'll be happy with either one if you reload, if not, get the .300.

 

[sprice]

Oh Oh reloading your own is a must! Hows the costs on reloading? I'd imagine it's pretty close

 

[redneckbmxer24]

Reloading costs are going to come down to what bullet you choose. If you run Bergers in both you're talking about a few cents a pill more for the 230's. Run the numbers on the two and compare, the ballistics are well worth the extra recoil and minimal extra cost.

 

[wilwith1l]

Thanks to the U.S. government's support of the .300 Win Mag, you are going to get, and did get, substantially more commercial support.

 

[Bill Larson]

300 has more horse power....

 

[RobertB]

I wont vote cause both are great LR rounds. I have both and love both. My first ever LR rifle was a 300WM still have it, still love it. I have a custom 7MM too that is incredible. If I could only have one I would go 300 because of the sentimental value of mine but Neither would make me feel handicapped.

 

[BoilerUP]

What kind of real-world (not brass-toast-after-one-shot pressure) velocity can a 300WM achieve with 230s from, say, a 26" barrel?

 

[mdmp5]

What kind of real-world (not brass-toast-after-one-shot pressure) velocity can a 300WM achieve with 230s from, say, a 26" barrel?

I get about 2830 with a 210 SMK thru a 26" barrel. With a 230, you are looking at mid 2700s, although I'm sure there is a guy on here that claims he is in the 2800s.

 

[Mendy300wm]

Not the same bullet but, I'm pushing 210bergers at 2910ish and have brass with 9 reloads on it. It's all about how you size with a belted case.

 

[mdmp5]

Not the same bullet but, I'm pushing 210bergers at 2910ish and have brass with 9 reloads on it. It's all about how you size with a belted case.

That is some impressive speed you got there. What powder you running, and how are you sizing?

 

[Mendy300wm]

210 VLD, 76g h1000, WLR primer, FGMM brass
Brass started out as FGMM 190smk fire formed to the chamber, I use a full length die and I only bump the shoulder back .002-.003

 

[redneckbmxer24]

I know a guy that's getting 2900 with them and a 28" barrel. I know his rifle is throated to load them way out there though. This is why a 300WM will be my next magnum rifle. My 300RUM gets even more but it's at the cost of barrel life, more powder, and a 31" tube.

 

[Mendy300wm]

I'm loading mine as long as I can to still fit in AI mags so 3.600

 

[1slow01z71]

210 VLD, 76g h1000, WLR primer, FGMM brass
Brass started out as FGMM 190smk fire formed to the chamber, I use a full length die and I only bump the shoulder back .002-.003

What barrel? It takes me mid 77s worth of H1000 to get a 208 amax to 2900 with my 26" 5r. Ive pushed it harder but its just a waste of powder for very little velocity gain and 2900 with 208 amaxs will get to a mile fine anyway. Ive got 300 fgmm brass I will move on to after this winchester is toast.

 

[Mendy300wm]

AI300wm, 24in bartlein 1in11 twist, Surefire 762SS can.

Now, if berger ever comes out with their 195grain 7mm bullet, I'm gonna have a 7mm-300 barrel made up... And I'll be Launching fucking cruise missiles out of that bitch

 

[mclevela]

I have them both.
I don't think there is enough difference to even warrant comparison when shooting the 180 vld vs the 208 amax.

 

[Engine 22]

@ Mendy ^^^Bwahahahahah!

 

[mdmp5]

210 VLD, 76g h1000, WLR primer, FGMM brass
Brass started out as FGMM 190smk fire formed to the chamber, I use a full length die and I only bump the shoulder back .002-.003

I use 76.3 H1000 with 210 smks, and bump the shoulder 0.000 to 0.001. Crazy how my velocity is not even close to yours

 

[Mendy300wm]

Okay so here is a little it's bit I just dug up, i still have my data book for my 300wm sendero I sold a while back, at 76.5 grains I was averaging 2824fps out of a stock remington barrel

 

[Gray]

7MM Mag would be my choice, I have owned 2, both shot great. While the 230 Berger has a higher BC than the 180gr Berger (7mm), It also has what feels like double the recoil. Between 0-1500 yards, the 7mm will flat out crush pretty much everything as long as its pushed around 3,000 fps. I get the factory loaded 300wm rounds for non-reloaders, but HSM does make Match ammo for the 7mm Rem Mag with 168 Bergers, these shot .3moa in my custom 7mm. I will agree that past 1500 I would want the 230 Berger, but they still have a LOT MORE RECOIL than the 7mm 180 gr.

 

[redneckbmxer24]

Weight and a effective brake will make recoil extremely low with a 300. Let's face it, most people aren't running these at matches where they may need to haul them around and most people aren't hunting with them so a little extra weight isn't going to hurt anything and neither is a loud brake. My 300RUM with 230's and an extra 20gr of powder over a typical 300WM load recoiled very little. It weighs 20lbs and has a very effective brake but the recoil is about equal to a 12lbs 243 without a brake. My 18lbs AX308 with 185's and no brake has more recoil and it's just a little push.

If you're talking lighter weight rifles and no brakes then yes a 300WM burning a few grains more powder and a 50gr heavier bullet is going to have more recoil but not double the recoil unless you're comparing rifles of different weight.

 

[Mr_Happyface]

AI300wm, 24in bartlein 1in11 twist, Surefire 762SS can.

Now, if berger ever comes out with their 195grain 7mm bullet, I'm gonna have a 7mm-300 barrel made up... And I'll be Launching fucking cruise missiles out of that bitch

That's what I'm saying.

Working on getting my AWM chambered in 7mmLRM, it's going to be insane.


I hope they hurry the F up.

 

[Unknown]

I'm launching 190 Sierra SMK out of a 300 at 2960 FPS using 68.5 of IMR4350, Fed primers, Win cases neck sized only. I have about 5-6 loadings on the cases and am starting to get some loose primer pockets. After this lot of ammo is gone, I'm switching to a heavier bullet over 200 grains.

I get about 50-75 cents worth of barrel errosion out of each shot..I figure that into my per round cost. Barrels last 1200 rounds if I'm lucky.

 

[turtlesniper]

I know you we're talking about the 230s but the 215s with there short bearing surface is a much better choice for the 300wm 2900 out of 26 with a .695bc shouldn't be to hard

 

[Natty Bumpo]

Should I get a rifle with detachable magazines in 7mm or in .300? I haven't seen a lot of guys who make long range rifles in 7mm or magazines that will fit the 7 (as far as I know accuracy international only makes .308, .300, and .338 right?).

Wouldn't AI magazines for the .300 Win Mag work for 7mm Rem Mag ammo?

 

[redneckbmxer24]

Wouldn't AI magazines for the .300 Win Mag work for 7mm Rem Mag ammo?

Yes, they fed fine for me.