Son wants a long range high speed rig Which cartridge?

[coyotemaster]

I was thinking like MoaShooter long before I got to his post. There is a breaking point somewhere on speed and bore size where more hurts and the fun is gone. A 6 Creed is blessed with good speed great bc and fine accuracy.
As you reload there are lots of 6 mm bullets to choose from.
I'd forget the brake and wear good hearing protection.

 

[coyotemaster]

I guess I was thinking MOAFLAT

 

[TX Badger]

We have a 7mag with 26" barrel real sweet to shoot!

Then I'd definitely go with a .257 option. You've got a 7 mag. for elk. If you really want a laser go with the 257 Roy or 25-05AI in a 7.75 twist. .345 bc, 131gr. at 3300 fps, zero at 290 yds.....

Range
(Yards) Velocity
(fps) Energy
(ft-lb) Wind Def.
(IN) Path
(IN)
0 3304.7 3176.2 0.0 -1.8
25 3269.4 3108.6 0.0 -0.4
50 3234.1 3042.0 0.1 0.7
75 3199.1 2976.3 0.2 1.6
100 3164.1 2911.7 0.4 2.2
125 3129.3 2848.0 0.6 2.7
150 3094.7 2785.3 0.8 3.0
175 3060.2 2723.5 1.1 3.0
200 3025.8 2662.8 1.4 2.8
225 2991.7 2603.0 1.8 2.3
250 2957.7 2544.1 2.3 1.6
275 2923.9 2486.3 2.8 0.7
300 2890.2 2429.4 3.3 -0.5
325 2856.7 2373.4 3.9 -2.0
350 2823.4 2318.5 4.6 -3.7
375 2790.4 2264.4 5.3 -5.7
400 2757.5 2211.3 6.0 -7.9
425 2724.7 2159.2 6.9 -10.5
450 2692.2 2108.0 7.7 -13.4
475 2659.9 2057.7 8.7 -16.5
500 2627.8 2008.3 9.7 -20.0
525 2595.9 1959.8 10.7 -23.7
550 2564.2 1912.3 11.9 -27.8
575 2532.8 1865.6 13.0 -32.3
600 2501.5 1819.9 14.3 -37.0
625 2470.5 1775.0 15.6 -42.1
650 2439.6 1730.9 17.0 -47.6
675 2409.0 1687.8 18.4 -53.4
700 2378.6 1645.5 20.0 -59.6
725 2348.4 1604.0 21.6 -66.2
750 2318.5 1563.3 23.2 -73.2
775 2288.7 1523.5 25.0 -80.6
800 2259.2 1484.5 26.8 -88.4
825 2230.0 1446.2 28.7 -96.6
850 2200.9 1408.8 30.6 -105.3
875 2172.1 1372.2 32.7 -114.4
900 2143.5 1336.3 34.8 -124.0
925 2115.2 1301.2 37.0 -134.0
950 2087.1 1266.8 39.3 -144.5
975 2059.1 1233.1 41.7 -155.6
1000 2031.4 1200.1 44.1 -167.1
1025 2003.9 1167.8 46.7 -179.2
1050 1976.6 1136.2 49.3 -191.8
1075 1949.5 1105.3 52.0 -204.9
1100 1922.5 1074.9 54.9 -218.7
1125 1895.8 1045.2 57.8 -233.0
1150 1869.2 1016.1 60.8 -247.9
1175 1842.8 987.6 63.9 -263.5

 

[vancewalker007]

We have a 7mag with 26" barrel real sweet to shoot!

If you want something trendy and rifle cool a 6.5 PRC will work great in that long action. I love mine. It's built on a Medium Defiance Deviant Ultralight and a 26 in 1:8 Proof Sendero Carbon barrel. The medium action gives me plenty of room to load those long 6.5 bullets out of the powder column as your long action would. You just need to throat it right. The advantage of this cartridge is lots of bullets to choose from, low recoil, and killer accuracy even from factory stuff. With factory loads I'm getting .5-.6 MOA. With my best hand loads I'm in the .3-.4 MOA range and everything I've tried has been easily sub-MOA and most 1/2 MOA.

If he's wanting a Big Mag, then have it throated for heavy bullets and set up the mag handle long rounds. You'll get the best long range performance from it. I'd stay away from real over bore stuff like the 6.5 300. Those tend to be tough to squeeze the best accuracy out of. A long throated 30 Cal, 300 Win, 30 Nosler,

 

[WestTexasHunter]

Searching for unique= 7mm SAW

 

[Oldschool280]

He has a 7-08, i think i'm gonna do something in a weatherby

 

[Canhunter35]

He has a 7-08, i think i'm gonna do something in a weatherby

I enjoyed my 257wby, with appropriate twist and 128hammer hunters and the 131 ace bullet would make it a lot of fun

 

[L.Sherm]

best

I'd stay away from real over bore stuff like the 6.5 300. Those tend to be tough to squeeze the best accuracy out of.

Is this your experience or hear say ?

 

[vancewalker007]

Is this your experience or hear say ?

This is my experience. I shot and loaded for 3 different STWs for a number of years back when we had to make cases from 300 WB cases by fire-forming. Trying to find a load was a chore because the rifles were very finicky. Bow, once a recipe was found they shot great but required a very specific combo of powder bullet, bullet seating, and neck tension. Then not paying attention to these troubles I switch to a 300 RUM which was again very finicky. Learning about these issues over the years with my own experieces and speaking with others about their experiences with big long over-bore mags and tiring of burning lots of ammo to find a load that would suit for long range Coues deer hunting I switched to the short mag line. Way way less finicky and easy to load for and plenty of power to get the job done.

Comparing these long-over-bore cartridges to an experience with a 300 WSM. This is of course a single point but still relavent. Loading the 190 Berger VLD in a 300 WSM Sako A7 Tecomate factory rifle for the first time. I used IMR4350. I created 4 test sets with various seating depths and enough powder to give a good velocity. All 4 random loads shot sub MOA and 1 of them shot .35 MOA. Just a random set of combinations all shot very good. I have since had similar results from other short/medium cased cartridges like the 7LRM and 6.5 PRC.

So basically over bore long cased mags tend to be very finicky and tiresome to load for versus a shorter cases counterparts.

I'm not saying you can't hit right on a great load that will satisfy your accuracy needs with an STW for example, but the odds are against it.

 

[L.Sherm]

Theres alot of reasons some rifles are finicky and wont shoot good. I have found reamer design, neck turning, primers, barrel and the Smith who puts the rifle together a bigger determining factor that " overbore" cartridge.

 

[vancewalker007]

Theres alot of reasons some rifles are finicky and wont shoot good. I have found reamer design, neck turning, primers, barrel and the Smith who puts the rifle together a bigger determining factor that " overbore" cartridge.

Sure there are a lot variables but every person I have run into with a 300 RUM or 300 Norma including several gunsmiths have all reported the same thing. It's a trend. And like I said it doesn't mean you won't quickly find a load to suite but I'd put money on someone finding a load quicker for a 300 WSM verses a 300 Norma with rifles of similar quality.

 

[L.Sherm]

I think you really need to look at what Ryan Pierce and Alex Wheeler are doing with the 300NMI.

 

[vancewalker007]

I think you really need to look at what Ryan Pierce and Alex Wheeler are doing with the 300NMI.

Oh I'm sure they have some very accurate loads and have developed some great starting points to get great accuracy out of new rifles they build. My 7 STW was a 1/4 minute rifle but I spent a lot of time getting there and for the average reloader or worse non-reloader that path can be painful.

 

[L.Sherm]

For any rifle to get true consistent1/4 m.o.a takes time and some never will be.