375 RUM AI Build

[Corey James]

Yes, I know I could choose Deviant Tactical or Deviant Hunter. I have built many but for me I am building a heavy duty 29" Monster in .375 RUM AI on the REM 700 Ultra Magnum Action for this time around with a 338 CIP Magazine at 3.850" for taking advantage of longer CEB Bullets (some of them) and the Sierra offerings. I have worked up a lot of loads and tested at 25, 27 and 28" and I am going with 29" and a very high speed twist of 1:9.4" in the .375 Caliber vs. 1:12"

So, given that here are the Specifications: Build by: area318.com

Action: REM 700 RUM blueprinted (fluted bolt and upgraded bolt handle), M16 Sako Extractor
Geisselle 2 Stage Trigger at 1.1 lbs.
Barrel: 29" Benchmark M24 Contour Barrel (Spiral Flutes) with #4 Terminator Brake
BUGNUT Barrel cut for REMAGE Threaded Barrel - Yes, a Switch-barrel as I have this already in 338-340 (modified 340 Wby Mag).
Stock: Manners T4A in Swamp Camo 14.25 LOP
Mini-Chassis v. full bed with 3.850" CIP Magazine Chassis and AI Mags.
8-40" screws for Seekins Precision 20 MOA Base
Seekins Precision Rings
Optics: March, Schmidt-Bender PM II or Leupold 5HD

Not making for a "cheap" ELR rather a LR/ELR Hunter and weight is NOT an issue with me nor is the length as I have fixed stands and horseback so weight of a Long Range Hunting Rifle is of very little concern to me.

I do however want suggestions for optics given this build because this seems to be my hold up as I really cannot decide. What I do know is that this is not a Safari short 22 or 24" Dangerous Game Gun now given the horsepower I put behind the build so premium long range optics suggestions are open to discussion.

The build is 75% complete.

Thank you all!

CBJ

 

[Corey James]

Optics for my 375 AI Build is greatly appreciated.

 

[Corey James]

Here are the specific optics I am considering:

S-B PM II 5-45x
Leupold 5HD - 3.6-18x
TRACT PRS 4-20 x 50mm
March Optics (have not decided on power yet) - again this will be more of a LR/ELR Hunter Rig not full blow competition however I will be shooting it 1,000 to 1,700 y

 

[surgeon260]

What is your question?

 

[Corey James]

What is your question?

Which optics would you choose considering the build above? If other please specify based upon your experiences not on cost. I am not looking to put cheap optics on a high $$$ rifle. Thank you!!

 

[surgeon260]

S&B 5-45 is like $6k.

Tract 4-20 is like $1k.

That's like asking "I need a new car. Would you recommend a Honda Civic or a Ferrari LaFerrari?"

 

[Corey James]

Oh I know the $$$$$

But I have used all these optics with success.... I am asking for alternative opinions beside myself.

Any help in deciding is appreciated.

If others I should consider please offer up opinions.

 

[surgeon260]

If you can afford an S&B, why would you even consider a Leupold or Tract?

 

[Corey James]

If you can afford an S&B, why would you even consider a Leupold or Tract?

Then SB it is but high power is not required with great optics like SB. I may consider the lower powered SBs.

See you are helping already! And my 5HDs are not junk I use many in ELR as well as NF but SB is hard to beat.

Do you have any experience with Kahles? They any good? Compared to lower powered SB???

 

[Corey James]

Then SB it is but high power is not required with great optics like SB. I may consider the lower powered SBs.

See you are helping already! And my 5HDs are not junk I use many in ELR as well as NF but SB is hard to beat.

Do you have any experience with Kahles? They any good? Compared to lower powered SB???

 

[Corey James]

If you can afford an S&B, why would you even consider a Leupold or Tract?

Thinking this one

5-25x56 34mm Tube PM II PSR Riflescope, Limited Edition 677-946-532-B2-A8B27, Color: Pantone 7504M, Tube Diameter: 34 mm

Over the 5-45x half the cost cant see x45 being a benefit over x25 in the $3,200 SB.

Not for under 1,700 y shooting but asking any advantage you see other than power?

I have great eyes so more power I dont think will help as I am not going to do any 2 mile shoots with this little 375 RUM AI

 

[Corey James]

Or this one over the Schmidt-Bender 5-45....

Any experience?

https://www.eurooptic.com/tangent-t...ad-1-mrad-adj-moa-calibrated-reticle-800.aspx

 

[Jeff Heeg osoh]

Corey

Just throwing this out there, I didn't see it in your build plan. You may want to consider a 40 or 50 moa picatinny rail when mounting the scope of your choice to gain as much travel ability possible or at least use a bunch of travel that would otherwise be wasted. The picture is just an example- in this case a 80 moa used on a 375 Snipetac.

Iamosoh

 

[Corey James]

Optics I am looking at have 70 to 100 MOA Elevation so a 20 MOA should be sufficient.

375 RUM AI too anemic for 2 mile shoots so this build is a fixed station Safari Style Hinting Rig vs. ELR weapon. If I was building a 2 mile weapon the gun alone would cost $15,000 minimum and I would choose the .416 B, 33XC or 37 XC. 338 Lapua and 375 Lapua even dont cut the need for plus 2 Mile Club any more.

I am no longer going to compete beyond 1,000y so I feel this small 375 AI will still let me do that cost effectively but have one nice ELR Hunting Rig.

Think I am going Kahles Optics 5-25x56mm on this build.

May use a 30 MOA on a Spuhr Scope Mounting Solution

Thx for ideas!