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Real World 7mm-08 Velocities
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Wondering what kind of velocities everyone is getting with the 7mm-08 ? Looking for 22 inch barrel speed preferably. Most reloading manuals are showing 26 inch figures. Thanks.
 
Posts: 402 | Location: Colorado Springs, Colorado  | Registered: 15 January 2005Reply With Quote
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I'm getting around 2800fps with 140gr Sierras and Varget powder. I haven't Chronied any loads with 140 Nosler BT's, but I'm sure they will be close. 120gr Nosler BT's were kicking just over 3000fps, but very innaccurate.
These were out of my 22" barrel A-bolt.


Isaiah 41:10
 
Posts: 120 | Location: Clermont, FL | Registered: 04 February 2005Reply With Quote
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I can get 2800 with 140 grain bullets with 41.5 gr IMR 4320 out of my 22" barrel. 46 grains of H414 is about 75 fps faster, but doesn't shoot as well as the loads using H4895 or IMR 4320 in my rifle.


John in Oregon
 
Posts: 940 | Location: Oregon | Registered: 23 November 2002Reply With Quote
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My Mod 70FW (22" tube) does 2950ish with 120 Sierra's and RL15. Data on 130-140 gr weights will require perusing my reloading log.
I seldom see book velocities, even with max loadings, but likely it's the 22" barrel.
Great cartridge!
 
Posts: 639 | Location: Central Texas | Registered: 28 March 2002Reply With Quote
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My BLR and Model 70 compact both have 20 inch barrels. Remington green box 140 grain clocks at about 2750 average. Some older Federal 140 grain partition clocks about 100 fps less at about 2650. My only handload (so far) has been 42 grains of H4350 with a 175 grain Hornady spire point. It clocks 2350 out of a 20 inch barrel. I think that you could use more than 42 grains, but it is compressed at 42 grain. Seated on the canalure. Feeds fine out of both.
 
Posts: 930 | Registered: 25 December 2001Reply With Quote
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Sticking w/Horn139SST load from Hornady, 2900fps+ in my Rem700ADL. I have also loaded up to this same velocity using RL15. My accuracy load that I shoot silhouettes with is same bullet, IMR4064 around 2750fps.

Deke.
 
Posts: 691 | Location: Somewhere in Idaho | Registered: 31 December 2002Reply With Quote
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Checked my log:
140 Sierra/51.0gr RL19 / 2830 fps avg
130 Speer flat base/ 44.0gr Varget /2858 avg
and several 120gr loads exceeded 3K; one load is 120 Sierra / 46.0gr Varget/ 3030 avg

All loads using R-P case /9-1/2 primer

Mod 70FW - 22" tube
 
Posts: 639 | Location: Central Texas | Registered: 28 March 2002Reply With Quote
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With 140s, 2800-2900fps.

2900 is the ragged edge in a 22" barrel.

I have had good results with Vv N550 in the 7mm-08 with 140s

IMR 4064 has worked well but 2800 is about the ceiling.


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Posts: 2440 | Location: Northern New York, WAY NORTH | Registered: 04 March 2001Reply With Quote
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FWIW, here are my results from playing with the 7-08 in a Browning A-Bolt (22" bbl, uncorrected 15' velocity, temp. 18-24°C / 64-75°F, except as noted otherwise).
Factory Loads:
R-P 120 gr HP, 2890 fps (8°C / 46°F);
F C 140 gr BT, 2700 fps;
R-P 140 gr PSP, 2780 fps;
R-P 140 gr PSPbt, 2785 fps;
R-P 140 gr BT, 2780 fps;
WIN 140 PSP-PP, 2700 fps;
F C 150 gr PSP, 2605 fps;
R-P 154 gr PSP-ER, 2585 fps.
Handloads, vel. for max. loads with 139 gr PSP Hornady:
IMR 4895 - 2635 fps (3-shot sub-MOA accuracy 1 gr under max.);
IMR 4064 - 2840 fps (indifferent accuracy with all powder charges);
W760 - 2800 fps (poor accuracy with all powder charges);
IMR 4350 - 2725 fps (3-shot 1.25 MOA accuracy 1 gr under max.);
H4350 - 2915 fps (8°C / 46°F, 3-shot sub-MOA accuracy 1 gr under max.).
Cheers, Al
 
Posts: 118 | Location: New Brunswick | Registered: 03 February 2005Reply With Quote
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Remington BDL, 22" barrel, chrony 12 feet from muzzle

50 to 60 degrees F
1100 ft elavation.
5 shot average, all shots in the same 2.5 hour period

WW Factory load 140 PP 2716
Varget 42, 140 NSLR AB 2711
Varget 42, 140 NSLR PT 2716
XMR 4064 42 140 NSL PT 2708

WW brass, BR2 primer, 2.80 with AB, 2.775 with PT

Under 1" in all 4 loads @ 100 yds.

What loads are you guys using to reach 2800 fps?
My Nosler book and AA book show these to be max loads.

May try H4350, H414, H4895, or RL 15 next.
 
Posts: 449 | Location: GA, USA | Registered: 13 March 2001Reply With Quote
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M700 22" Ti:

140 Grain TSX:
H4350 49.5 2825 fps very accurate

H414 49.5 2890 fps accurate (H414 gives me the highest velosity with 140 grain bullets but varies according to temperature)

120 Grain TSX:
RL15 44 grains 3050 fps
Varget 45 grains 3080 fps very accurate (limited testing)


Florida...where you have to go north to get south.
 
Posts: 318 | Location: Pinhook River, Florida | Registered: 27 March 2004Reply With Quote
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Trigger:

139H/47.0/W760/WLR - average of max. loads from 6 maunuals (compressed);
139H/43.0/IMR4064/R9½ - ~Lyman max. (0.5 gr. over IMR max, 2 gr. over Hornady max., 2.4 gr under Sierra max) approach with caution!!;
139H/50.0/H4350/WLR - Hodgdon max. (compressed).

Cheers, Al
 
Posts: 118 | Location: New Brunswick | Registered: 03 February 2005Reply With Quote
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i've loaded the 7mm-08 for about 10 years tried ererthing from 3031 to 4350. i have settled on RL-15. it gives the best volcity with accuracy. i load 44 grains of RL-15 with WLR primer from a 24 in. rem. 700 S.S. with a 140 grain sierra B.T. shot over a croney at 2944 fps. and less than 1 in groups at 100 meters.
 
Posts: 1137 | Location: SouthCarolina | Registered: 07 July 2004Reply With Quote
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Trigger,

I am with vines. In my Rem700ADL-22" barrel I shoot 139SST's for silhouette competition out to 385m (I switch to 168MK's for 500m), antelope, and deer. My hunting load is 43.5gr RL15 with R-P brass and FedGM210Match primers for a chronied velocity of 2911fps. Hornady states 41.9gr is max for the 139SST, but I get safe pressure indications less than or identical to other published max loads with the 43.5gr. Hornady also has a load of 49.9gr of H414 for 2900fps, but I got to my max pressure indicators at 49.4gr and a velocity of 2902fps. Ken Waters has published loads with Horn 139's and WW760 (which I find close to H414) that he gets velocities in the mid 2900's. My silhouette load with the 139's is 41.1gr IMR4064 for 2742fps and 5/8MOA groups. I am hoping to work more with the RL15 to be as accurate as the IMR4064, but with more velocity than the IMR4064.

Deke.
 
Posts: 691 | Location: Somewhere in Idaho | Registered: 31 December 2002Reply With Quote
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