Remington 700 CP (chassis pistol)

[Bob Wright]

I was eyeballing my 243 Model 7 youth rifle that none of the kids use anymore. Add a folding chassis, a brake and dial in some loads. I had no idea some of you were already doing something like this.
It makes a lot of sense for decent truck guns or dedicated hunting rigs.
I was also thinking about a switch barrel in 6.5 something, 22-250 and 243 or xxx caliber of ones choosing. We don't have hogs here but lots of small game.

 

[T3ninja]

So for those that do have a suppressor, which chamberings to go with? I still think velocity would suffer on the .308 and the .300blk really shines on an AR platform. Is this a "buy and rebarrel immediately" thing?

I could see using the .300blk at 200yards or less- even suppressed that's a lot smaller and lighter than my 20" .308win. Again though, an AR pistol can come in about the same size, minus the buffer tube.

I've had savage strikers (7/08 and .308) and a Weatherby mk5 CFP (centerfire pistol, in .243)

The only thing you lose is velocity, but I was making hits on milk just at near 800 yards with the .243. The 7/08 I didn't shoot much, it was too pretty if you can believe that being a savage haha. The .308, well I'd probably shoot deer size game as far with it as I would my .308 rifle, 350-400 yards. If I know it's going to be longer, I pick a different tool. Like anything, to be good at it you need to practice and these kinds of pistols are definitely no exception. They are extremely fun to hunt with, especially still hunting.

 

[sable tireur]

This is a two year old thread so some things have changes over that period. Remington added the 6.5 Creedmoor chamber:

"In 2019, Remington introduced the 700 Chassis Pistol (CP) version of its legendary Model 700 bolt-action rifle. Bolted into an aluminum chassis, the action uses a detachable magazine and is chambered for 5.56mm/.223 Remington, 300 Blackout and .308 Winchester cartridges. But for 2020, Remington has decided to offer the 700 CP in the popular 6.5 Creedmoor. Big Green has also made the 700 CP available with an SB Tactical arm brace, which makes the pistol even easier to shoot."

https://www.tactical-life.com/firearms/handguns/remington-700-cp-pistol-review/

 

[Moki]

Hope these tables work here are some Quickload data for the 12.5" barrel in 308 Win

Cartridge : .308 Win. (SAAMI)
Bullet : .308, 125, Nosler Accubond 52165
Useable Case Capaci: 49.073 grain H2O = 3.186 cm³
Cartridge O.A.L. L6: 2.700 inch = 68.58 mm
Barrel Length : 12.5 inch = 317.5 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 62000 psi, or 427 MPa
or a maximum loading ratio or filling of 104 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

85 loads produced a Loading Ratio below user-defined minimum of 80%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant AR-Comp 102.7 45.0 2.91 2730 100.0 62000 15222 0.660 ! Near Maximum !
Winchester 748 99.1 48.2 3.13 2705 93.9 62000 16028 0.660 ! Near Maximum !
Hodgdon CFE223 101.0 50.9 3.30 2703 91.1 62000 16216 0.657 ! Near Maximum !
Hodgdon BL-C2 101.4 50.1 3.24 2686 92.3 62000 16084 0.666 ! Near Maximum !
Hodgdon H322 99.7 43.8 2.84 2680 97.1 62000 15245 0.664 ! Near Maximum !
Hodgdon H335 94.0 46.4 3.01 2671 95.9 62000 15400 0.666 ! Near Maximum !
Hodgdon H4895 103.3 46.7 3.03 2671 91.8 62000 15844 0.669 ! Near Maximum !
Alliant Reloder-10x 97.1 41.4 2.69 2660 99.4 62000 14720 0.676 ! Near Maximum !
IMR 8208 XBR 101.7 46.0 2.98 2649 92.9 62000 15219 0.667 ! Near Maximum !
IMR 4198 96.5 39.2 2.54 2644 99.8 62000 13768 0.664 ! Near Maximum !
IMR 3031 104.0 44.0 2.85 2632 96.6 55516 15553 0.690 ! Near Maximum !
IMR 4895 104.0 47.0 3.05 2621 89.5 57861 15772 0.686 ! Near Maximum !
Hodgdon Benchmark 100.6 44.8 2.90 2620 94.0 62000 14634 0.671 ! Near Maximum !
Alliant Reloder-7 91.2 39.9 2.59 2620 99.7 62000 13867 0.680 ! Near Maximum !
Ramshot X-Terminator 98.5 47.5 3.08 2620 90.8 62000 14901 0.671 ! Near Maximum !
Ramshot TAC 100.8 49.1 3.18 2616 86.8 62000 15017 0.669 ! Near Maximum !
Alliant Reloder-15 104.0 47.0 3.05 2585 88.1 56664 15365 0.692 ! Near Maximum !
Hodgdon VARGET 104.0 45.5 2.95 2500 86.9 53437 14164 0.703


Cartridge : .308 Win. (SAAMI)
Bullet : .308, 150, Nosler AccuBond 56719
Useable Case Capaci: 47.945 grain H2O = 3.113 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 12.5 inch = 317.5 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 62000 psi, or 427 MPa
or a maximum loading ratio or filling of 104 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

86 loads produced a Loading Ratio below user-defined minimum of 80%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
IMR 3031 103.4 42.7 2.77 2507 99.3 62000 15577 0.720 ! Near Maximum !
Hodgdon CFE223 97.4 48.0 3.11 2500 94.0 62000 16179 0.713 ! Near Maximum !
Alliant AR-Comp 98.4 42.1 2.73 2494 100.0 62000 14443 0.721 ! Near Maximum !
Winchester 748 95.3 45.3 2.94 2492 96.4 62000 15799 0.717 ! Near Maximum !
IMR 4895 102.5 45.3 2.94 2483 93.7 62000 16147 0.724 ! Near Maximum !
Hodgdon BL-C2 97.7 47.1 3.05 2480 95.1 62000 15969 0.723 ! Near Maximum !
Alliant Reloder-15 103.3 45.6 2.96 2471 92.8 62000 15923 0.724 ! Near Maximum !
Hodgdon H4895 99.6 44.0 2.85 2466 94.5 62000 15712 0.726 ! Near Maximum !
Hodgdon H322 96.0 41.2 2.67 2463 98.8 62000 14844 0.722 ! Near Maximum !
Hodgdon H335 90.6 43.7 2.83 2460 97.9 62000 15102 0.724 ! Near Maximum !
IMR 8208 XBR 98.1 43.4 2.81 2444 95.5 62000 15059 0.724 ! Near Maximum !
Hodgdon H380 104.0 47.0 3.04 2438 90.5 61278 15572 0.729 ! Near Maximum !
Alliant Reloder-10x 93.4 38.9 2.52 2438 100.0 62000 14094 0.736 ! Near Maximum !
IMR 4320 104.0 45.2 2.93 2437 92.8 59742 15179 0.721 ! Near Maximum !
Ramshot TAC 97.5 46.5 3.01 2424 90.1 62000 15100 0.724 ! Near Maximum !
Ramshot X-Terminator 95.2 44.9 2.91 2422 93.7 62000 14850 0.727 ! Near Maximum !
Hodgdon Benchmark 97.2 42.3 2.74 2417 96.4 62000 14451 0.728 ! Near Maximum !
Hodgdon VARGET 104.0 44.5 2.88 2400 91.9 59360 14842 0.732 ! Near Maximum !
IMR 4166 Enduron 104.0 44.0 2.85 2328 86.3 57431 14067 0.748 ! Near Maximum !


Apples to apples, 125gr vs 150gr in 12.5" 308

125gr, avg speed of top six fastest powders = 2695 fps

150gr, avg speed of top six = 2495 fps

125gr BC .327 (Bryan Litz), 150gr BC .397 (Litz)

When both sighted in +2" high at 100y :

200y
125gr - 2202 fps, 1346 ft lbs, Point of impact = 0.0"
150gr - 2103 fps, 1472 ft lbs, POI = -0.7" low

300y
125gr - 1977 fps, 1085 ft lbs, POI = -9.0" low
150gr - 1921 fps, 1229 ft lbs, POI = -11.1" low

400y
125gr - 1767 fps, 866 ft lbs, POI = -26.7" low
150gr - 1750 fps, 1000 ft lbs, POI = -30.7" low

 

[Moki]

I've now had a bit of an experience I also shoot a 22" factory tapered/fluted Rem 700 LTR in 6.8SPC my preferred bullet are 95gr Barnes TTSX @ 2900fps I had an opportunity to purchase 500 110gr Accubonds I am loading them @ 2750fps.

This last Sunday morning I came across a spike blacktail buck that some neck shooting genius had taken a shot at it had its jaw mostly blown off I had to put it down and out of its misery it was standing almost perfectly broadside to me I shot it at appr 140 yards with the 110gr Accubond load this is the first time I have used them on deer.

The bullet entered directly behind the right leg broke two ribs traveled thru both lungs broke two ribs on the off side deer ran appr 50 - 70 yards.

To say I was impressed with the Accubonds performance is an understatement but more to it it made me think about the load - trajectory data above for the 12.5" barreled 308 Win.

If I can get the same performance from the he 125gr load above which has is faster - flatter trajectory than the 150gr bullets I would be very happy I have now purchased the last two boxes of 125gr Accubonds that I can find anywhere.