Monthly Archives: January 2023

Browning XBolt “Speed” 7mm Rem. Mag.- Likes and Dislikes – My Grade?

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X-Bolt Speed

Browning X-Bolt 7mm Rem Mag with 1:9.5 twist in a light 6 lb 13 oz mountain-rifle configuration. Fluted, sporter-weight 26 inch barrel with radial muzzle brake. Cerakote Smoked Bronze finish. Composite stock with highly versatile Browning OVIX Camo.

https://www.browning.com/products/firearms/rifles/x-bolt/x-bolt-speed.html

My retail cost. $1349 with Browning Scope Mounts.

This is a hunter’s rifle. It is meant to hunt in any weather anywhere.

As a mountain rifle this would be great to carry high on a mountain or in a valley out as far as you are comfortable shooting.

It is not glossy, but made for a serious hunter looking for stealth.

It is not designed for target shooters with heavy guns and bull barrels and light triggers to shoot holes in holes, but never the less can shoot sub-MOA for some loads and powders up to heavy bullets like175 grain Nosler’s I have tested. 

It is worth the money! Read on…

What I like most? 

  • Does it shoot? Yes and decent MOA and even sub-MOA groups too depending on the bullet.
  • The 60°bolt throw in the X-Bolt is extremely smooth and cycles like lighting, I have shot dozens of rifles and find the bolt throw and smoothness… first class.
  • Overall weight 6lbs 13 oz. is amazingly light to carry.
  • The fluted sporter barrel in Smoked Bronze Cerakote and is well made, handsome and ready for any fowl weather.
  • I was immediately impressed with how fast it cycles for a second shot. Like lightning!
  • The removable beefy 3 shot clip is exceptionally well made of composite material and audibly clicks when installed.
  • The composite stock has texture along with the cool OVIX camo and grip swell. 

What I like least?

The trigger adjustability needs improvement. However it is a crisp 4 pounds.

Twist rate could be a bit faster. I would have preferred a 1:8.5 twist which manages improved heavier bullet stability but it still shoots 175 grain for long range.

My Test Conclusion

It shoot sub-MOA for 140 grain bullets and is stable in twist to shoot up to 175 grain Nosler bullets that I have shot 1 1/4″ at 100 yards. 

An acquaintance hunted Africa with me years ago and took a 1000 + pound Blue Eland with one shot from his 7mm Rem Mag and a 175 grain bullet. It was a heart shot! 

My best moose bullet so far is Nosler 168g ABLR with initial sub MOA 3/4″ group at 3005 fps.

I shoot without a muzzle brake and recoil is surprisingly moderate but I am used to shooting big magnum’s. 

My Overall grade without including the trigger is a solid A.

With trigger as is, gets an A minus. I will add a Timney in time.

I am taking this Browning rifle to hunt moose in Newfoundland this September and will write about the hunt. 

Good Hunting!

© Copyright 2023

Browning X-Bolt Speed 7mm Rem Mag with Hand Loaded IMR 4831 Powder and 168g Nosler ABLR for Moose

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X-Bolt Speed

My Browning 26 inch 9.5 twist rifle barrel likes hand loaded 7mm 168 grain Nosler ABLR with a hot load of IMR 4831 per Nosler web load data. I chrono’d an average of 3005 fps. Wow! These are cookin’ !! COAL was 3.255 inches. No pressure signs except the primer was a bit flatter… as expected. Three rounds measured 3/4 inch but more testing will firm that up. I will change the trigger to a Timney at some point as it is impractical to easily adjust with a 2mm Allen wrench on a sealant filled screw. If you like 4 pounds for a factory trigger it works, for some hunters, not me. All my rifles are set near 3 pounds. 

Research with Bryan Litz Applied Ballistics Book finds that  the Nosler 175g ABLR Form Factor of 0.94 is considered low drag but the 168g ABLR is considered VLD Very Low Drag with Form Factor of 0.896 thus holding its energy better at long range than the 175g ABLR.

Assuming I use the 168 Nosler ABLR for long range Newfoundland moose hunting, I can reach out in a large open terrain tundra-like bog with my BOG tripod Death Grip to steady the shot out to 600 yards.

Distances I will practice this summer, in prep for the hunt, is out to 600 yards. With a 300 yd zero, at 100 yards the bullet is 3 inches high and 150 yards is 4 inches high, dead-on at 300 yards and Max Point Blank Range is 376 yards. At 600 yards terminal energy is 1822 ft-lbs and still traveling over 2200 fps. At 400 yds it holds a truck-load of energy at 2200 ft-lbs. Just have your laser rangefinder at hand and be ready for a follow-up shot. The 60 degree bolt throw is a big plus for very fast second shots.

Below is the JBM ballistic report for the Nosler 168g ABLR at 3005fps and zeroed for 300 yards.

 

Trajectory
Input Data
Manufacturer: Nosler Description: Accubond Long Range Spitzer (G7)
Caliber: 0.284 in Weight: 168.0 gr
Ballistic Coefficient: 0.353 G7 (ASM)
Muzzle Velocity: 3005.0 ft/s Distance to Chronograph: 10.0 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: 10.0 mph Target Angle: 90.0 deg
Target Height: 48.0 in
Temperature: 45.0 °F Pressure: 29.92 in Hg
Humidity: 0 % 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: 6.548 MOA Windage: 0.000 MOA
Atmospheric Density: 0.07859 lb/ft³ Speed of Sound: 1101.3 ft/s
Maximum PBR: 376 yd Maximum PBR Zero: 318 yd
Range of Maximum Height: 174 yd Energy at Maximum PBR: 2318.7 ft•lbs
Sectional Density: 0.298 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 *** 3009.8 2.733 3378.7 0.000 0.0 ***
50 1.4 2.8 0.1 0.2 2938.4 2.668 3220.4 0.050 8.9 17.0
100 3.4 3.2 0.4 0.4 2867.8 2.604 3067.5 0.102 18.0 17.2
150 4.3 2.7 1.0 0.6 2798.0 2.541 2920.0 0.155 27.3 17.4
200 4.0 1.9 1.8 0.8 2729.1 2.478 2777.8 0.209 36.8 17.6
250 2.6 1.0 2.8 1.1 2661.0 2.416 2640.9 0.265 46.6 17.8
300 -0.0 -0.0 4.1 1.3 2593.7 2.355 2509.2 0.322 56.7 18.0
350 -3.9 -1.1 5.6 1.5 2527.4 2.295 2382.5 0.381 67.0 18.3
400 -9.2 -2.2 7.4 1.8 2462.1 2.236 2260.9 0.441 77.6 18.5
450 -15.9 -3.4 9.5 2.0 2397.7 2.177 2144.1 0.503 88.5 18.8
500 -24.1 -4.6 11.9 2.3 2334.2 2.120 2032.2 0.566 99.6 19.0
550 -33.9 -5.9 14.6 2.5 2271.7 2.063 1924.8 0.631 111.1 19.3
600 -45.4 -7.2 17.6 2.8 2210.3 2.007 1822.1 0.698 122.9 19.6
650 -58.7 -8.6 20.9 3.1 2149.8 1.952 1723.7 0.767 135.0 19.8
700 -73.9 -10.1 24.6 3.4 2090.3 1.898 1629.7 0.838 147.4 20.1

 
25-Jan-23 07:58, JBM/jbmtraj-5.1.cgi

 

 

 

 

 

 

 

Moose Hunting Anatomy – Where to Aim

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I hear hunters often ask where exactly should I aim my rifle on a broadside moose? On a facing moose? On a quartering away or toward you? 

Anatomical Knowledge Helps

All questions we need answers to in the field. I went on a web search and found a great article below written by a veterinarian for hunters. It included Caribou anatomy too. 

https://ucalgary.ca/caribou/HuntingMoose.html

As you can see below moose lungs, in orange, are huge and your best target.

LOOK AT THOSE HUGE LUNGS

A shot centered on it, and the moose is yours provided good bullet construction and penetration.

Check out the website for shooting angle aiming for lungs.

The heart is low and not the best target, a miss is more possible. Aim for lungs!

 

https://ucalgary.ca/caribou/HuntingMoose.html

Good Hunting!

 

Big Game Hunting Rifles Are Far More Accurate than most Hunters

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Most all rifles shoot far more accurate than the hunter, but out in the field, things can happen fast. The hunter must be accurate and ready.

The honest truth is, shooting off a bench at a bullseye is not hunting…it is target shooting. 

In reality, accuracy is, for the most part, in the hands of the hunter, not necessarily in the rifle. It is common to see hunters shoot MOA or even sub-MOA bench rest groups with todays rifles and be happy, ready to hunt. Right? Not really! 

We must practice how we are going to hunt. Hunters that do not prepare physically out in the field, including me, or shoot their rifle enough to know it well, are kidding themselves.

For me, it is a self talk to get my butt to the range regularly, shoot standing off a tripod rest or offhand burning powder and sending bullets downrange. Thus having an intimate relationship with your rifle, its recoil and trigger time.

Once your rifle is sighted-in, it is time to get you “the hunter” sighted-in away from the bench. 

It is best to shoot at a target that does not have a bullseye, after all deer and bear do not have a bullseye on them. 

 A paper plate target can help give you some focus to keep bullets on it.   I often purchase near life size paper animal targets to put my crosshairs on. It helps greatly or create a cardboard left or right facing shoulder/chest to aim at. What if the game is facing you, and that is your only shot opportunity. Are you ready? 

Good Hunting!

 

 

 

Reloading the 7mm Remington Magnum for my Browning X-Bolt w/ New Norma Brass

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I purchased Norma Brass this January for reloading my new Browning Rifle for moose hunting. There were no other Brass manufacturers available on the Internet, that I could find at the time… but glad I bought them.

I purchased a lot of 50, packed in plastic bags and boxed. How did they weigh-out? 

Accordingly, I weighed 10 case random sample and did a Standard Deviation, Average and Extreme Spread. 

Std Dev.  0.74 grains

AVG Wt. 214.83 grains

Extreme Spread of 2 grains in the ten cases. That is excellent!

 

 

 

I took a photo of the flash hole from inside this unsized case. Notice that there is no apparent burr. Some manufacturers like Norma drill the flash hole instead of punching. Drilling is better!

I found this informative review below of Norma Brass on line. 

Norma 7mm Rem Mag Brass Review

 

Adding the primers with my press was much more difficult as they were new and difficult to seat. The good news is that these primer pockets will firmly hold the primer and make reloading the case less susceptible to loose primers. Norma says the brass can be reloaded  up to 10 times according to the above article. 

I used my RCBS Rock Chucker Press, RL-22 powder and loaded Nosler 7mm 175 grain AccuBond Long Range. The bullets are boat tail thus I thought it would make it a bit easier to press the bullet.  They still pressed hard but did not hurt the case.

I shall chamfer the inside of case necks on the next batch to make the bullets press easier. 

I shot enough to zero at 100 yards (groups 1 1/4″) then chronographed them at 2615 fps. I expected a much faster bullet. I was hoping for 2900 fps says Nosler data with 1:9 twist and 24 inch barrel. My barrel is 1:9.5 twist with a 26 inch barrel. Accordingly, I will experiment with powders to see what I can safely wring out of these bullets. Inspecting the fired case and primers look normal. 

The trigger still pulls heavy for me (4 lbs) and soon I will have a Timney to swap out the factory trigger. 

I also loaded some Nosler 168 grain ABLR’s with IMR 4831 and they chrono’d at around 3005 fps and grouped at 3/4 inches at 100 yards. I liked that load!

This round may turn out to be better for long range moose than the 175 ABLR.

More Soon!

 

 

 

Sent email to Timney Triggers to Test Trigger for Browning X-Bolt- They Responded

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Hope to hear back from Timney folks. They Responded.

In just a week or two Timney will send a Trigger for the X-Bolt to test and share with readers, including my removal of the original trigger, replacement and hunting/shooting tests. You don’t need a gunsmith! The shooter has choices of pull weights set at the factory. Mine will be 3 pounds pull weight.

https://timneytriggers.com/browning-x-bolt/

I have had great luck with these triggers.

. Browning X-Bolt

Browning X-Bolt Speed 175 grain Nosler AccuBond Long Range Tests Begin

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If you read my first articles on my Browning X-Bolt Speed, I was eager to shoot some Nosler 175g ABLR’s in my new rifle. I had hoped they would group well for long range moose hunting even with 9.5 twist rate.

 

This week I shot several rounds. Initial groups were just over 1 inch. The X-Bolt Trigger set by the factory at 4 lbs. is a bit too stiff for me, and a pain to try to adjust. I will shoot more this next week. I did shoot a single “cold bore” at 100 yards and then moved the target to 150 yards and shot “cold bore” again with the 100 yard zero. I expected the bullet to drop a bit. It fell only one inch, as expected. Nice! This initial testing with 175g was very encouraging. 

 

 

I hand loaded the bullet with Reloader 22 at 62 grains, (COL 3.24), giving a published estimate of over 2900 fps with a 24 inch barrel. The X-Bolt has a 26 inch barrel. I estimate a 50 fps improvement but will chrono some next week for real data.

Below is the JBM ballistic chart for this bullet if it’s muzzle velocity was 2950 fps. Energy at 600 yards is over 1800 ft-lb and velocity is over 2100 fps. Recoil is 24 ft-lbs. Felt recoil is much less, maybe half, with the great recoil pad on this rifle. 

Very impressive start!

 

 

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: 2950.0 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: 40.0 in
Temperature: 40.0 °F Pressure: 29.92 in Hg
Humidity: 50 % 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: 3.400 MOA Windage: 0.000 MOA
Atmospheric Density: 0.07925 lb/ft³ Speed of Sound: 1095.8 ft/s
Maximum PBR: 370 yd Maximum PBR Zero: 313 yd
Range of Maximum Height: 171 yd Energy at Maximum PBR: 2348.1 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 *** 2950.0 2.692 3381.0 0.000 0.0 ***
25 -0.7 -2.8 0.0 0.1 2915.4 2.661 3302.2 0.026 0.0 0.0
50 -0.2 -0.4 0.1 0.2 2881.0 2.629 3224.8 0.051 0.0 0.0
75 0.0 0.0 0.2 0.3 2846.8 2.598 3148.6 0.078 0.0 0.0
100 -0.0 -0.0 0.4 0.4 2812.8 2.567 3073.8 0.104 0.0 0.0
125 -0.3 -0.2 0.7 0.5 2779.0 2.536 3000.3 0.131 0.0 0.0
150 -0.9 -0.6 1.0 0.6 2745.3 2.505 2928.1 0.158 0.0 0.0
175 -1.7 -0.9 1.3 0.7 2711.9 2.475 2857.3 0.186 0.0 0.0
200 -2.9 -1.4 1.8 0.8 2678.7 2.444 2787.7 0.213 0.0 0.0
225 -4.4 -1.8 2.3 1.0 2645.7 2.414 2719.4 0.242 0.0 0.0
250 -6.1 -2.3 2.8 1.1 2612.9 2.384 2652.4 0.270 0.0 0.0
275 -8.2 -2.9 3.4 1.2 2580.3 2.355 2586.6 0.299 0.0 0.0
300 -10.6 -3.4 4.1 1.3 2547.9 2.325 2522.1 0.328 0.0 0.0
325 -13.4 -3.9 4.8 1.4 2515.8 2.296 2458.9 0.358 0.0 0.0
350 -16.5 -4.5 5.6 1.5 2483.8 2.267 2396.9 0.388 0.0 0.0
375 -19.9 -5.1 6.5 1.7 2452.1 2.238 2336.1 0.418 0.0 0.0
400 -23.7 -5.7 7.4 1.8 2420.7 2.209 2276.5 0.449 0.0 0.0
425 -27.9 -6.3 8.5 1.9 2389.4 2.180 2218.1 0.480 0.0 0.0
450 -32.5 -6.9 9.5 2.0 2358.4 2.152 2160.9 0.512 0.0 0.0
475 -37.4 -7.5 10.7 2.2 2327.6 2.124 2104.8 0.544 0.0 0.0
500 -42.8 -8.2 11.9 2.3 2297.0 2.096 2049.9 0.576 0.0 0.0
525 -48.5 -8.8 13.2 2.4 2266.7 2.069 1996.2 0.609 0.0 0.0
550 -54.7 -9.5 14.6 2.5 2236.6 2.041 1943.5 0.642 0.0 0.0
575 -61.3 -10.2 16.1 2.7 2206.8 2.014 1892.0 0.676 0.0 0.0
600 -68.4 -10.9 17.7 2.8 2177.2 1.987 1841.6 0.710 0.0 0.0

 
10-Jan-23 07:21, JBM/jbmtraj-5.1.cgi

 

More to come…

Why choose 7mm Rem. Mag. for Moose?

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I can shoot my heavy recoiling 375 Ruger very well, so why choose a 7mm Remington Magnum instead? First and foremost the 7mm RM, in my new Browning X-Bolt, is lighter, even with a 26 inch barrel, and has almost 50% less recoil than the 375 (40 ft-lb for 375 Ruger). And the 7mm RM has less recoil than the 300 Win Mag or 300 PRC. 

X-Bolt Speed

The 7mm RM can maintain superior moose killing energy at long ranges out to 500 and even 600 yards. Shooting Nosler’s 168g AccuBond Long Range, it has almost 1900 ft-lbs and over 2200 fps at 600 yards. Bullet speed allows mushrooming, and the energy translates to penetration. Below is Nosler image of an AccuBond mushroom at 1350 fps. Most bullets require 1800 to 2000 fps to open like this.

1350 fps

Lesser potent cartridges have killed many moose but have energy limitations at long range. And most local sporting retailers carry 7mm Rem Mag ammo. 

Cost of a moose hunt in Newfoundland isn’t cheap so I got a rifle caliber that can reach further for maximum opportunity. 

My 375 Ruger’s energy quickly poops out around 400 yards or so. Shot distances in Newfoundland tundra and bogs can easily exceed 400 yards. 

Rifle and shooter accuracy is of vital importance, perhaps more-so than delivered energy.  That said, less felt recoil translates to improved accuracy. I use a very sturdy Bog Death Grip tripod for those long range shots. 

Practice out to 600 yards becomes essential, and I have a local range that can do that. I just loaded up some 175g Nosler ABLR’s and soon will load some Nosler 168g ABLR. I will shoot some in my next article.

More soon!

© Copyright 2023