[Tang]

Now I'm just doing this for fun, and for some good guessing/starting points. Some of these are just for laughs, and would in no way work.

All Data is with a 26" barrel
___________________________________________________

.224 Ultra Mag
55gr Nosler BT
4577 feet per second

.243 Ultra Mag
95gr Nosler Partition
3900 feet per second

.257 Ultra Mag
117gr Sierra
3618 Feet Per Second

.264 Ultra Mag
120 Nosler BT
3659 Feet Per Second

.277 O'Conner Killer
130gr Sierra
3717 Feet Per Second

.323 Faucett
220gr Sierra
3210 Feet Per Second

.358 Beartracker
225gr Nosler Accubond
3261 Feet Per Second

.366 Ultra Mag
286gr Nosler Partition
2955 Feet Per Second

.416 Ultra Mag
400gr Barnes
2500 Feet Per Second

.458 Tang Likey
500gr Hornady RN
2400 Feet Per Second

 

[Bird Dog II]

i am thinking .224 Ultra Mag with a long throat and 1-7" twist barrel. Of course it may implode on ignition and the throat would likely be gone fairly quick. But I would be interested on how fast you could drive a 90gr Berger VLD and what its trajectory would look like.

 

[Tang]

i am thinking .224 Ultra Mag with a long throat and 1-7" twist barrel. Of course it may implode on ignition and the throat would likely be gone fairly quick. But I would be interested on how fast you could drive a 90gr Berger VLD and what its trajectory would look like.

I dont have the latest update for Quickload, so I only have the Berger 80gr VLD.

80gr Berger VLD
98.1 grains of Accurate 8700
26" - 3799
27" - 3853
28" - 3904
29" - 3952
30" - 3998
31" - 4042
32" - 4084


<TABLE border=0 cellSpacing=0 cellPadding=0><CAPTION>Ballistics Table in Yards</CAPTION><TBODY><TR><TD><TABLE border=1 cellSpacing=1 cellPadding=2 width="100%"><TBODY><TR><TD align=left>.224 UM Berger VLD 80 gr., .445 B.C.</TD><TD align=right>www.hornady.com</TD></TR></TBODY></TABLE></TD></TR><TR><TD><TABLE border=2 cellSpacing=1 cellPadding=2><TBODY><TR><TD>Range (yards)</TD><TD align=middle>Muzzle</TD><TD align=middle>100</TD><TD align=middle>200</TD><TD align=middle>300</TD><TD align=middle>400</TD><TD align=middle>500</TD><TD align=middle>600</TD><TD align=middle>700</TD><TD align=middle>800</TD><TD align=middle>900</TD><TD align=middle>1000</TD></TR><TR><TD>Velocity (fps)</TD><TD align=middle>4084 <TD align=middle>3810 <TD align=middle>3553 <TD align=middle>3311 <TD align=middle>3082 <TD align=middle>2865 <TD align=middle>2659 <TD align=middle>2462 <TD align=middle>2273 <TD align=middle>2092 <TD align=middle>1920</TD><TR><TD>Energy (ft.-lb.)</TD><TD align=middle>2963 <TD align=middle>2578 <TD align=middle>2242 <TD align=middle>1947 <TD align=middle>1688 <TD align=middle>1458 <TD align=middle>1256 <TD align=middle>1076 <TD align=middle>918 <TD align=middle>778 <TD align=middle>655</TD><TR><TD>Trajectory (200 yd. zero)</TD><TD align=middle>-1.5 <TD align=middle>0.4 <TD align=middle>0.0 <TD align=middle>-3.2 <TD align=middle>-9.5 <TD align=middle>-19.5 <TD align=middle>-33.7 <TD align=middle>-52.8 <TD align=middle>-77.6 <TD align=middle>-109.1 <TD align=middle>-148.6</TD><TR><TD>Come Up in MOA</TD><TD align=middle>-1.5 <TD align=middle>-0.4 <TD align=middle>0.0 <TD align=middle>1.0 <TD align=middle>2.3 <TD align=middle>3.7 <TD align=middle>5.4 <TD align=middle>7.2 <TD align=middle>9.3 <TD align=middle>11.6 <TD align=middle>14.2</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<CENTER> </CENTER><HR>

 

[beretzs]

That 358 Beartracker would be a monster! I am not sure who would suffer more though, the shooter or the intended quarry! Either way, it would be a pretty awesome 35 cal! Scotty

 

[41 Mag]

Well I haven't tried the 130's in mine, but I can easily hit 3400 with my load using a 150gr Nosler Solid Base, not sure how fast the 130gr would get out there but I bet it would be somewhere close to what you have there. The 169.5gr Wildcat runs at a mild 3250fps and the 195gr Wildcat at 3150fps. Fine LR rifle, my best group was just over 9" at 1150yds. Of course your barrel lenght is a bit shorter than mine at 30".

Mine is called a .270 Allen Mag. Here are some details,
270 Allen Magnum
300 Rem Ultra Magnum parent case, necked to 270 and fireformed to min body taper and sharper shoulder angle.
130 gr.(3800 fps) up to 169.5 gr ULD RBBT(.740 bc) 3300 fps in 27” barrel length, 3400 fps in 30” barrel length
Designed for game up to 500 lbs at long range, deer and pronghorn out to any range a shooter can place the bullet in the vital zone of his target. Appropriate powders: H-870, H-US869, AA8700 and WC872

 

[beretzs]

41 Mag, do you have a picture of your 270AM. That sounds like an awesome rig. Scotty

 

[InRut]

The 224 one sure would be fun to fool around with.
I like the 257 and the 458.

 

[41 Mag]

41 Mag, do you have a picture of your 270AM. That sounds like an awesome rig. Scotty

Here ya go, along with a couple of 500yd groups,

These were taken a week or so before the rifle was shipped back to me from Montana, makes a great pic.

Just for comparrison here are a few shots from other rifles,

The yellow circles are around some 180gr .300 RUM factory loads, the green around a .7mm Rem Mag load, and the red around some 25-06 hand loaded 115gr Partitions.

Left to right, .270-150gr Nosler Solid base, .270-169.5gr Wildcat RBBT ULD, .270-195gr Wildcat RBBT ULD

Here are a couple of groups from the .270 Allen Mag on our 500yd plate, notice the depth of the dimples even at that range,


150gr Solid Bases at 3450fps 15' from the muzzle

169.5gr Wildcat @ 3250fps 15' from the muzzle

169.5gr Wildcat

Dialing the scope in for the 195's, the two at the top were 150's to see the difference in impact height. They are a bit more touchy in the wind than the 195's.
195gr Wildcat @ 3150fps 15' from the muzzle

 

[beretzs]

Awesome shooting 41 Mag. That is a heckuva rifle. Those 195gr Bullets sure look like they would hold up well in the wind. Have you taken any game with the rifle yet? Keep us updated on that gun, it looks like a great platform. Scotty

 

[41 Mag]

Awesome shooting 41 Mag. That is a heckuva rifle. Those 195gr Bullets sure look like they would hold up well in the wind. Have you taken any game with the rifle yet? Keep us updated on that gun, it looks like a great platform. Scotty

Thanks, I would have to say that a whole lot of the credit on those groups goes to the builder. The thing is simply a fine piece of machinery.

For the most part out to around 800yds they all do pretty well in the wind, relatively speaking, up to around 15mph or so simply due to the fact they get there so fast. The best I have done with it was just over 9" at 1150yd. It was about as dead calm as it gets where we were shooting, and even with that I had to dial around 4' into the wind. The awesome thing with this rifle is that you can see the impact at just about any range.

This rifle was built expressly for a long range heavy varmint rig. That said our most sought after varmints are usually feral hogs. Out to around 500yds the 169.s are pretty devastating on a broadside, as are the 195's. The 150's are used for fire form loads and even with them they are easily .5 MOA accurate out to 500yds. I haven't used them on anything as of yet but figure they would do as good or possibly even better than the others. The 169, and 195's sometimes do to a 150# hog, what a 55gr BT does with a ground hog. But if they are settled in and not moving to get across the wide open spaces, head shots are pretty easily accomplished. One fact of the matter is that anything under 300yds all bets are off, on anything other than an ear shot. Any way you slice it however the combo has done what it was built for extremely well.

Are they for everyone, no, are they needed, matter of opinion, but for the purpose we had in hand, they were simply a tool to have, and use when anything else wasn't quite up to the task. They definitely aren't the sit at the range and shoot 50 rounds at a setting type rifle. With the case capacity and bore size I expect at around 1500 rounds or so to either have to set the barrel back and rechamber or possibly to rebarrel to the standard .300 RUM. My bud sold his almost identical rig, and is now shooting the 300 with about the same results out to 1K using 180gr Bergers. So with that as a fall back along with the copious amount of brass I have on hand, one of either will be in my collection for a while.

 

[2Bits]

Several years ago, I took a .300 Ultra Mag and turned it into a .338/300Ultra mag. It works ok but excessive recoil in the rifle have caused me to not warm up to this as I thought I might, even when wearing a PAST recoil pad. I didn't want to install a muzzle brake on the rifle but it is evident now that such a device is a must go to keep recoil down to a tolerable degree. It could use a little more weight, as it only weighs in at 10 pounds.

I have shot 225grain and 250grain bullets out f this rifle using a Bushnell 5 x 15 power scope on top now. My eyesight has gone South and it is very hard to shoot good groups like I used to, fact of life for all of us sooner or later I suppose. Nonetheless, this rifle of mine has shot some 3 & 4-inch groups and under at 500 & 600 yards. I do believe the recoil of this rifle, according to the ballistics calculator is something like 50-lbs of recoil to the upper torso........OUCH! I have gotten a little over 3100-fps using 225 grain Sierra bullets and 2950-fps with 250 grainers.

However, since I do have a .300 Ultra mag, I mostly just shoot it as this is a lot easier on my body and just doesn't hurt near as much at the bench. I get a little over 3300fps using a 180 grain bullet with this rifle that has a Hogue stock on it like the one above does. The fact that the recoil is some 12-lbs or less is more to my liking.

 

[41 Mag]

Tracer,

If you decide to go with a brake on that heavy hitter, I can highly recommend either one of the Defensive Edge, or one of the Allen Precision styles. Both Shawn Carlock and Kirby Allen have worked with these type calibers extensively and have developed hunting brakes which tame them down to ***** cat levels. Their brakes are also VERY well designed for prone shooting and will keep your sope on target for visual confirmation on target or game.

Do a search on the Long Range Hunting forum and you will find plenty of info on them.