Reloading and Shooting 7mm RM 175g ABLR 150yd Sub MOA Max Load

Reloading and Shooting Thoughts for Long Range Hunting.

It is important to recognize that there are significant differences from hunting vs target reloading/shooting.

Hunters want a light rifle, (6 to 9 pounds) that shoots accurately out of a cold barrel.

It is the first cold barrel shot that really counts to anchor your big game, not the second, third or fourth shot.

Sure, a follow up shot is also important in the case that your game is still on its feet, but that first cold barrel shot is key.

Shoot for 3 shot groups not 5 shot groups.

Below from my new Browning X-Bolt Speed 7mm Rem Mag  at 150 yards at 7/8 inch group at 3000fps. I will practice out to 600 yards.

Nosler 175g ABLR 3 shot
group RL 22 at 150 yds 2975 fps
7/8 inch

Target shooters on the other hand want a heavy rifle and  heavy barreled rifle (often well over 10 to 20 pounds to absorb heat from the barrel and reduce felt recoil. Best target groups are from a warmer barrel not a cold barrel. And the bullet is chambered to engage the rifling thus increasing chamber pressure.  

Hunter’s who reload, prefer to reload to around 15 to 30 thousandths off the rifling lands and often can shoot a hotter and faster bullet to maintain more delivered energy to big game. My 7mm Rem Mag Browning X-Bolt delivers 2000 ft-lbs. of energy at 550 yards. 

By reloading for your hunting rifle, you can customize case, powder, bullet and primer, save cost, get more satisfaction,  while increasing long range accuracy from a cold barrel.

Since preparing to hunt moose this fall, at long range, I pay more attention to case concentricity, seating depth and neck tension. It has helped greatly.

l_749007305_1.jpg

One final thought, I swab the bore at the end of cleaning with a degreaser solvent to remove any lubricant or cleaning agent to improve the first cold shot.

KG KG-3 Gun Cleaner-Degreaser 19 oz Aerosol

It works great!

Good Hunting!

©Copyright 2023

 

 

 

Redding Competition Bushing Neck Sizer Die for 7mm Rem Mag

For Long range shooting I need consistent neck tension on my bottleneck bullets. I ordered this Redding Bushing Neck sizer die from Midway for $148 dollars and a Titanium Nitride Bushing $34 below for my 7mm Rem Mag.

Do you need this special neck sizer for hunting here in New England? Not really, unless you shoot beyond 200 yards or are strong on the details side of things. 

Redding Competition Bushing Neck Sizer Die

Below: Titanium Nitride Bushing

Redding Neck Sizer Die Bushing

Reading the instructions, I had to unscrew the micrometer and spring/shaft portion from the body and place the bushing into the main body tube where the micrometer came out.

This die comes with a primer-remover-shaft that allows you to use the primer remover, or not, by adjusting the shaft in or out. I did not want to de-prime, as my brass was full length sized, confirmed concentric to 0.003″ or less on my Sinclair gage, and then primed.

My already loaded rounds measure 0.311″ Outside Diameter.  My neck bushing has a 0.309″ opening will now size the empty primed and full length brass to 0.309″ to grip the bullet by 0.002″ tension.

Here is a photo and Stat’s of the latest Nosler 175g ABLR 3 shot Nosler 175g ABLR 3 shot 7/8″ group RL 22 at 150 yds.

 

Stats – Average 2964.82 fps
Stats – Highest 2975.04 fps
Stats – Lowest 2953.98 fps
Stats – Ext. Spread 21.06 fps
Stats – Std. Dev 10.55 fps

Primers and case look normal. I could punch the 3000fps mark but with this really tight 150 yard 7/8″group, I am very happy here with an SD of 10.

Good Shooting!

© Copyright 2023 

 

 

Reloading: Cartridge and Bullet Concentricity Tests for Hunting

 If you hunt and shoot beyond 200 yards, bullet and brass concentricity (wabble) can matter. Experienced long range shooters call it “runout.” I have shot at 600 yards at targets on occasion but rarely checked for concentricity/runout till prepping for this falls moose hunt. 

Accordingly, I just purchased a Sinclair Concentricity gage to check for runout and to see groups improve. The idea is to eliminate fliers! But that required me to do more brass case prep too. That must have helped as well. Some swear by it, some don’t.

l_749007305_1.jpg

First tests were for the case neck on those I had already full length resized a week earlier.

 

After checking 30 cases, half were at .003″ or greater runout (wobble), half were less.  Some long range hand loaders suggest that 0.003″ is the max runout.

What to do?

I ran these .003 cases back through my full length sizing die a few times, rotating 90 degrees and retested. Runout (wobble) improved to .0015″ or less.

Next is to load some bullets and retest for bullet runout.

All bullet retests for runout were 0.003″ or less. Nice!

Doing this test suggests that the bullet is better aligned to enter the rifling nearer to parallel. So lets see some targets…

Below this Nosler 168g ABLR group shrunk from 2 inches to 1 1/8 inch group at 150 yards  is an example of what the Sinclair Concentricity Gage did for me.  Sub-MOA groups below!

 

The next picture below is of the same 168g ABLR bullet at 150 yd distance but the OAL was longer (0.020 off the lands).

The 1/4 inch difference in grouping photos was probably me. But you can see these are both sub-moa groups.

Lesson learned! To establish a best in class reloading process with or without the gage.

Good Shooting!

 

© Copyright 2023 All Rights Reserved

 

 

 

 

 

 

 

 

Nosler AccuBond Long Range for 7mm Rem Mag

I have been a Nosler fan since my African Safari some years back and have taken two bull moose and whitetails with AccuBonds from 140 grain up to 300 grains with great success on big game.

Accordingly, I have written extensively about Nosler bullets in my New Hampshire Rifleman Magazine using AccuBonds, Partitions as well as E-Tips. All world class hunting bullets that hit hard, stay together and penetrate deep. Handloading my own bullets are key to my satisfaction and success.

The AccuBond Long Range ABLR bullet is in a class all by itself, providing very low drag, a bonded bullet that can mushroom as low as 1350 fps and stays together up to 3000 fps. No other bullet can make that claim.

https://www.nosler.com/products/bullets/product-line/accubondr-long-range.html

 

The ABLR is offered in 150g, 168g, and 175g bullets for those who may encounter long range shots. In my case, I will be hunting Newfoundland Moose among the myriad of bogs that can span many hundreds of yards.

Below is the Trajectory Chart and Delivered Energy. See the 500 Yd data in bold for 2100 ft-lbs delivered energy.

 

Trajectory
Input Data
Manufacturer: Nosler Description: Accubond Long Range Spitzer (G7)
Caliber: 0.284 in Weight: 175.0 gr
Ballistic Coefficient: 0.364 G7 (ASM)
Muzzle Velocity: 2974.0 ft/s Distance to Chronograph: 0.0 ft
Sight Height: 1.50 in Sight Offset: 0.00 in
Zero Height: 0.00 in Zero Offset: 0.00 in
Windage: 0.000 MOA Elevation: 0.000 MOA
Line Of Sight Angle: 0.0 deg Cant Angle: 0.0 deg
Wind Speed: 10.0 mph Wind Angle: 90.0 deg
Target Speed: 0.0 mph Target Angle: 90.0 deg
Target Height: 50.0 in
Temperature: 48.0 °F Pressure: 29.92 in Hg
Humidity: 40 % Altitude: 0.0 ft
Vital Zone Radius: 5.0 in
Std. Atmosphere at Altitude: No Pressure is Corrected: Yes
Zero at Max. Point Blank Range: No Target Relative Drops: Yes
Mark Sound Barrier Crossing: No Include Extra Rows: No
Column 1 Units: 1.00 in Column 2 Units: 1.00 MOA
Round Output to Whole Numbers: No
Output Data
Elevation: 3.368 MOA Windage: 0.000 MOA
Atmospheric Density: 0.07799 lb/ft³ Speed of Sound: 1104.6 ft/s
Maximum PBR: 373 yd Maximum PBR Zero: 315 yd
Range of Maximum Height: 172 yd Energy at Maximum PBR: 2393.8 ft•lbs
Sectional Density: 0.310 lb/in²
Calculated Table
Range Drop Drop Windage Windage Velocity Mach Energy Time Lead Lead
(yd) (in) (MOA) (in) (MOA) (ft/s) (none) (ft•lbs) (s) (in) (MOA)
0 -1.5 *** 0.0 *** 2974.0 2.692 3436.3 0.000 0.0 ***
25 -0.7 -2.8 0.0 0.1 2939.7 2.661 3357.5 0.025 0.0 0.0
50 -0.2 -0.4 0.1 0.2 2905.6 2.631 3280.0 0.051 0.0 0.0
75 0.0 0.0 0.2 0.3 2871.6 2.600 3203.8 0.077 0.0 0.0
100 -0.0 -0.0 0.4 0.4 2837.9 2.569 3128.9 0.103 0.0 0.0
125 -0.3 -0.2 0.7 0.5 2804.3 2.539 3055.3 0.130 0.0 0.0
150 -0.8 -0.5 1.0 0.6 2770.9 2.509 2983.0 0.157 0.0 0.0
175 -1.7 -0.9 1.3 0.7 2737.7 2.479 2911.9 0.184 0.0 0.0
200 -2.8 -1.3 1.7 0.8 2704.7 2.449 2842.2 0.212 0.0 0.0
225 -4.2 -1.8 2.2 0.9 2671.9 2.419 2773.7 0.239 0.0 0.0
250 -6.0 -2.3 2.7 1.0 2639.4 2.390 2706.5 0.268 0.0 0.0
275 -8.0 -2.8 3.3 1.2 2607.0 2.360 2640.5 0.296 0.0 0.0
300 -10.4 -3.3 4.0 1.3 2574.9 2.331 2575.8 0.325 0.0 0.0
325 -13.1 -3.8 4.7 1.4 2542.9 2.302 2512.3 0.355 0.0 0.0
350 -16.1 -4.4 5.5 1.5 2511.2 2.274 2450.0 0.384 0.0 0.0
375 -19.5 -5.0 6.3 1.6 2479.7 2.245 2389.0 0.414 0.0 0.0
400 -23.2 -5.5 7.3 1.7 2448.4 2.217 2329.1 0.445 0.0 0.0
425 -27.3 -6.1 8.2 1.9 2417.4 2.189 2270.3 0.476 0.0 0.0
450 -31.8 -6.7 9.3 2.0 2386.5 2.161 2212.8 0.507 0.0 0.0
475 -36.6 -7.4 10.4 2.1 2355.9 2.133 2156.4 0.538 0.0 0.0
500 -41.8 -8.0 11.6 2.2 2325.5 2.105 2101.1 0.570 0.0 0.0
525 -47.5 -8.6 12.9 2.3 2295.4 2.078 2047.0 0.603 0.0 0.0
550 -53.5 -9.3 14.3 2.5 2265.4 2.051 1993.9 0.636 0.0 0.0
575 -60.0 -10.0 15.7 2.6 2235.8 2.024 1942.0 0.669 0.0 0.0
600 -66.9 -10.6 17.2 2.7 2206.3 1.997 1891.2 0.703 0.0 0.0

 

04-Apr-23 13:05, JBM/jbmtraj-5.1.cgi

 

© Copyright 2023 

 

 

Reloaders- Smokeless Powder Burn Rate Charts Aid in Alternatives

Not finding your favorite powder for sale?  This chart can help find powders closest to yours. I did that with my alternative to Reloader 22 and found Viht N560 and it worked great. Nosler listed it in their manual. 

Reloading safety is of prime importance thus you must begin a new powder at starting loads and work up. The internet should give some start load data sources if you search your caliber and alternative powders.

All reloading manuals list alternative powders but there are some older reloading manuals that are not current in new state-of-the-art powders. 

IMR published a burn rate chart PDF below and includes many brands.

Check it out.

 

https://imrpowder.com/wp-content/uploads/2017/02/burnratecolor.pdf