7mm rem mag short barrel

[Desertguy]

Trying to settle on the right elk gun. I know I’ll get the X Bolt 2 chambered in 7 rem mag, but I’m torn between the SPR 22” or regular 26” barrels. I’ll screw on an 8” can so length is a factor, but I don’t want to sacrifice too much EV and energy. Anyone have data on this caliber in a 22” barrel?

 

[The Harbor Master]

Trying to settle on the right elk gun. I know I’ll get the X Bolt 2 chambered in 7 rem mag, but I’m torn between the SPR 22” or regular 26” barrels. I’ll screw on an 8” can so length is a factor, but I don’t want to sacrifice too much EV and energy. Anyone have data on this caliber in a 22” barrel?

Another recent thread has some info you may be after.

Post in thread 'Threading for 7mm Rem mag and suppressor barrel length'

Yesterday at 9:57 AM

You won't have any issues with twist rate unless you're running a bullet that is already borderline unstable.

Great insights. Thanks for sharing your experience.
This comment in particular is where I'm worried. Per Hammer's website, the 145 hht requires a 1:9.25 twist or faster. I haven't seen any signs of instability with the 1:9.5 and 24" barrel, but I wonder if that would change going shorter.

After research and thinking about the gun model (proprietary action), I'll probably leave the gun alone (why mess with a system that's running flawlessly), preserve what resale value it...

• Scofield_DA

• 

Do you know what bullet you'll be shooting? I get 2705 from a 20" barrel with factory 168gr Berger Hybrids.

 

[Desertguy]

Another recent thread has some info you may be after.

Post in thread 'Threading for 7mm Rem mag and suppressor barrel length'

Yesterday at 9:57 AM

You won't have any issues with twist rate unless you're running a bullet that is already borderline unstable.

Great insights. Thanks for sharing your experience.
This comment in particular is where I'm worried. Per Hammer's website, the 145 hht requires a 1:9.25 twist or faster. I haven't seen any signs of instability with the 1:9.5 and 24" barrel, but I wonder if that would change going shorter.

After research and thinking about the gun model (proprietary action), I'll probably leave the gun alone (why mess with a system that's running flawlessly), preserve what resale value it...

• Scofield_DA

• 

Do you know what bullet you'll be shooting? I get 2705 from a 20" barrel with factory 168gr Berger Hybrids.

I found that thread after I posted lol. It would either be the 168 Bergers or something really close. Twist becomes a factor too since it’s 1:8 on a 22” barrel and 1:9 on the full length

 

[The Harbor Master]

I found that thread after I posted lol. It would either be the 168 Bergers or something really close. Twist becomes a factor too since it’s 1:8 on a 22” barrel and 1:9 on the full length

Gotcha. I can tell you that with a 20" barrel and OCL Hydrogen S (7 inch can) direct threaded on, it feels quite long. Manageable for sure, but long. If I had an 8" can on a 26" or even 22" barrel I'd go nuts lol.

 

[Speaks]

I cant imagine using an 8 inch can on a 26 inch barrel, or really even a short OTB can on one. 22 inch barrel with an OTB can is about the longest I could want.

Unless hunting is just posting up in one spot sitting, if that were the case I suppose it matters far less.

 

[Desertguy]

Gotcha. I can tell you that with a 20" barrel and OCL Hydrogen S (7 inch can) direct threaded on, it feels quite long. Manageable for sure, but long. If I had an 8" can on a 26" or even 22" barrel I'd go nuts lol.

What round are you shooting with that setup?

 

[Mac-N-Tweas]

Currently in the same boat, sending off a 26" #2 contour barrel to get cut, crowned, and threaded for cans between 5-7". It's going to be long but will keep you updated once I can chrono 168 ABLRs. Running warm charges of H1000 I don't foresee a huge drop in speed once the can is added but I'm hesitant to cut a 7RM too short. The speed and energy downrange was half the reason I picked the cartridge years ago in the first place. I am leaning towards 23" and something like the nomad ti xc as the best compromise.

 

[The Harbor Master]

What round are you shooting with that setup?

Factory Federal loaded with 168gr Berger Hybrid Hunter

 

[199p]

I have had 3x 7rmmag with 20" barrel because i run a can, they all went 2880 - 2940 with a 162 amax using 2225

all of them tikka t3s but im dumb and cant hold onto anything