Remington 7mm-08

[lefty315]

I was able to do a little horse trading this past week and ended up with a youth model Seven in 7mm-08 with an 18.5 inch barrel. I am planning on using 140 grain bullets. Anyone have any experience with either of the 4350 powders or 4895 and the shorter barrel?

 

[Greg Nolan]

lefty315
I have the 20" barrel version of that and have had the best luck with Hodgdon Varget powder. I use 44gr. behind a 139gr. Hornady BTSP in Rem. nickel brass. WW LR primer. It gives me 2775 FPS. and very consistant velocities.
Good luck
Elkhunt :grin:

 

[FOTIS]

Cartridge : 7 mm-08 Rem.
Bullet : .284, 139, Hornady BTSP 2825
Cartridge O.A.L. L6: 2.800 inch or 71.12 mm
Barrel Length : 18.5 inch or 469.9 mm
Powder : Hodgdon VARGET

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 80 35.20 2203 1498 32900 9136 90.5 1.263
-18.0 82 36.08 2256 1570 34973 9424 91.7 1.232
-16.0 84 36.96 2308 1644 37162 9706 92.7 1.202
-14.0 86 37.84 2360 1719 39482 9980 93.7 1.167
-12.0 88 38.72 2412 1796 41942 10245 94.6 1.133
-10.0 90 39.60 2465 1875 44549 10502 95.4 1.101
-08.0 92 40.48 2517 1955 47313 10748 96.2 1.070
-06.0 94 41.36 2569 2037 50246 10983 96.9 1.040
-04.0 96 42.24 2621 2120 53358 11206 97.6 1.011 ! Near Maximum !
-02.0 98 43.12 2673 2205 56662 11417 98.1 0.983 ! Near Maximum !
+00.0 100 44.00 2725 2292 60172 11614 98.6 0.956 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 44.88 2777 2379 63902 11797 99.1 0.930 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 45.76 2828 2468 67871 11964 99.4 0.905 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 46.64 2879 2559 72097 12116 99.7 0.881 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 47.52 2930 2650 76600 12251 99.9 0.858 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 48.40 2981 2743 81405 12369 100.0 0.835 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 44.00 2836 2482 70226 11404 100.0 0.894 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 44.00 2576 2048 50283 11310 93.6 1.037

 

[Ol` Joe]

According to my Pact M1 my old M7 708, 20" barrel and M700 with a 20" Douglas both ran ~ 75 fps slower then my M700 24" barrel in 708 with both IMR4350 and Varget under 139 gr Hornadies or 140 gr BTs. I wouldn`t fret the slight loss you`ll get.

 

[Powerstroke]

lefty,

The 7-08 is a great round. I have a M700 Varmiter that likes IMR-4350 loaded towards the top of the scale. Shoots 120's, 140's & 150's equally as well. You might look at the 120's out of that shorter barrel. I have a .260 youth for my wife that likes 120's and down.

 

[rquack]

I own that same rifle and really like shooting 120 grain BT's out of it. 1/2 inch groups and deadly on deer. Plus very little recoil! I'm using 43.0 grains of IMR 4064, book velocity of 3050, but I've never chrono'd it out of the little gun. Good shooting

 

[280SOLIDBASE]

lefty...My son shoots a Remington 700 SPS in the 7mm-08. After trying several powders with the Nosler 140 gr. BT, I ended up using 46.5 gr. of IMR 4350 which gave me a chrono'd velocity (avg.) of 2784 fps. and sub 1" groups @100 yards.

 

[JD338]

The 120 gr BT is a very robust bullet, great for deer. The 120 gr actually is the 140 gr bullet but the jacket is cut back to form a 120 gr profile. This gives it a much thicker jacket so it holds up well at higher velocities.

I recovered one in water jugs shot from my 280AI with a MV of 3300+ fps
and it held up quite well.

Its a great option for a low recoiling load in the 7mm-08. :wink:

JD338

 

[FOTIS]

I have used them (120 bt) from my 7mm-08 at 3100 fps (Varget). From 70 yards to 335 it just hammered antelope and we never recovered a one!

 

[Big Squeeze]

Lefty......................Congrats on your horse trading! A 18.5" barreled Remmy 7 in the 7mm/08??? My kinda gun!!..........Based on the previous post by `Ol Joe", the only difference in velocity between his chrono`d 24" 7mm/08 and his chrono`d 20" 7mm/08 is 75 fps., or 18.75 fps. of velocity loss, per inch!! An excellent trade off to get a compact!!..............That goes right in line with what I have been stating about shorter barreled compacts; a 15 to 30 fps. loss per inch with most rifles!.....And Joe`s findings fall right in line with my 300 WSM compact results too!....I have a feelin that your new compact toy will see more time in the field than any other rifle you have? I would not be surprised!!................I hope you have as much fun with your compact as I do with mine!!!

 

[lefty315]

Yeah, I don't think I will ever get 2800 fps out of it. I always figure if I want more velocity than what the gun is designed for than I should just get a different caliber. I would like to get close to 2700, if I can. I am close and the accuracy is pretty good so far. I really want to get a load with IMR 4350 as I am trying to cut my powder supply/demand down to 2 rifle powders.

 

[FOTIS]

Yeah, I don't think I will ever get 2800 fps out of it. I would like to get close to 2700, if I can. .

Cartridge : 7 mm-08 Rem.
Bullet : .284, 139, Hornady SP 2820
Cartridge O.A.L. L6: 2.800 inch or 71.12 mm
Barrel Length : 18.5 inch or 469.9 mm
Powder : IMR 4350

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 89 38.40 2134 1405 30161 8894 78.3 1.305
-18.0 91 39.36 2190 1481 32222 9238 79.8 1.270
-16.0 94 40.32 2247 1559 34429 9581 81.2 1.235
-14.0 96 41.28 2305 1640 36794 9920 82.7 1.200
-12.0 98 42.24 2363 1724 39332 10256 84.0 1.163
-10.0 100 43.20 2422 1810 42056 10587 85.4 1.126
-08.0 103 44.16 2481 1900 44984 10912 86.7 1.091
-06.0 105 45.12 2540 1992 48129 11229 88.0 1.056
-04.0 107 46.08 2601 2087 51529 11538 89.2 1.023 ! Near Maximum !
-02.0 109 47.04 2661 2185 55188 11838 90.4 0.991 ! Near Maximum !
+00.0 112 48.00 2722 2287 59143 12126 91.5 0.960 ! Near Maximum !
+02.0 114 48.96 2783 2391 63415 12403 92.6 0.930 !DANGEROUS LOAD-DO NOT USE!
+04.0 116 49.92 2845 2499 68014 12665 93.6 0.901 !DANGEROUS LOAD-DO NOT USE!
+06.0 118 50.88 2907 2609 72990 12913 94.5 0.873 !DANGEROUS LOAD-DO NOT USE!
+08.0 121 51.84 2970 2723 78392 13145 95.4 0.846 !DANGEROUS LOAD-DO NOT USE!
+10.0 123 52.80 3033 2840 84270 13358 96.2 0.819 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 112 48.00 2878 2557 70617 12540 97.2 0.888 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 112 48.00 2531 1978 48381 11222 82.9 1.052