View Full Version : best long range 7mm for 1200 yrds+?

December 31, 2010, 08:36 PM
i am in the process of building a new 7mm for 1200+ yards (ive been debating what cartridge to go with for the last three months) and i am going to use the 180 burgers. i will be using a 26" broughton and i am looking to push the 180s at 3100. which cartridge would be best? i was going to do the 7 LRM (gunwerks cartridge) but i dont know anything about it. i am like everybody else that wants good barrel life, and accuracy. thanks for your time

December 31, 2010, 08:49 PM
Kirby Allen's 7mm Allen Magnum.
338 Lapua Magnum parent case, necked down to 7mm and fireformed to min body taper and shoulder angle. 140 gr.(3800 fps) up to 200 gr. ULD RBBT(.900 bc) 3200 to 3350 fps from 26” to 30” barrel lengths

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January 1, 2011, 12:06 AM
Zoomie has a good build that will work great for you but may cost a large bundle. The gunwerks LRM would be a good choice as well and should save some money. Rather than setting your hope for the burger also try some others out, the burger is naturally great but try some and see what works best for the particular rifle

January 1, 2011, 12:11 AM
I also suggest looking at Allen's work---they look great and owners with whom I've communicated are very happy. I had a 338 Allen Express (based on the same Lapua case) in the works until the economy tanked.

January 1, 2011, 12:22 AM
If you're doing the Gunwerks LR-1000, I doubt you'll get it for less than a rifle from Kirby. Gunwerks is pretty proud of their stuff.

January 1, 2011, 12:26 AM
You're in your fourth rifle buy-build since Christmas day. Are you rich, or just a ??????

January 1, 2011, 08:27 AM
Sounds like you have already sent money to GunWerks! Let them analyze your needs, they know what's best out of their rifles.;)

January 1, 2011, 04:05 PM
With those velocities you are going to have horrible barrel life, expect between 1000 and 2000 rounds before your throat is shot out.

Velocity isn't the end all be all of long rang shooting. It helps, but if you want to shoot all day you probably want a rifle with really manageable recoil.

Spend some time here http://www.6mmbr.com/7mm284.html and see if that doesn't sway you towards a short action rifle in 7mm WSM or 7mm SAUM.


January 1, 2011, 04:53 PM
Step away from the joystick.

January 1, 2011, 06:00 PM
Step away from the joystick.

Yeah Dude. At least until you're loading Bergers instead of burgers.

Mmmmmmmmmmm buuuuuurgers.

January 1, 2011, 06:53 PM
ive been looking around for info on the 7 am but with those velocities the barrel life must be horrible.

January 1, 2011, 06:55 PM
supercrossdude,,try the 7mm stw in the remington 700 mountain rifle.:cool:If that aint what your lookin for, I'll eat my hat!;)

January 1, 2011, 06:58 PM
ive been looking around for info on the 7 am but with those velocities the barrel life must be horrible.
Yep, at least compared to a 308. 3100 with 180s was one of your requirements - you don't get that and long barrel life. If you can live with not quite 3100, then I'd agree with the 7STW.