Custom Smokeless Muzzleloader

S

smokeeter

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I swear this stuffs addictive.
Just finished another custom Remington 700 ml smokeless.
I really like the 700 ml frame for ease and convenience for building these smokeless muzzleloaders. They could be had for a reasonable price but the secret must be out cuz there aren't alot of cheap ones going around any more. But accessories are readily available.
This one will be called Bad Boy II because of the overwhelming success of the first Bad Boy.
I managed to pick up a real nice Krieger blank in .458 1:16 twist with 10 flutes in stainless this one is .450 land to land, a little tighter than my shilen.
The bolt nose was converted with a twist, this time the primer holder was chamfered and the primer pocket on the new breech plug had a radius to match to help seal the blow back, the pocket was designed to encapsulate the 209 primer and form a perfect seal with virtually no blow back.I really much prefer the 209 ignition over cut shell casings. This breech plug is recessed with a snout that fits into the bore of the barrel, the plug is also equipped with a carbide ventliner ( which probably won't have to be replaced).
This time around the mounts are deadnutz in stainless (actually aluminum) , although their version of stainless doesn't quite match Remington's. and it'll be wearing the ever popular zeiss 3.5-10x44 eye wear.
I went with another LVSF stock which needed to be hawged out considerably to accommodate the massive Krieger barrel. I put a little spin on things to avoid confusion between the two guns and I painted the stock green with black spider webbing this time.
This sucker is no lightweight weighs in at 9 1/2 lbs so it'll probably be a stand gun. I don't doubt it'll be another shooter.

Here are a few pics.
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here's the Krieger along side the shilen.
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here's the first Bad Boy
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First question: So it the receiver is a standard 700ml with another barrel screwed on it?


So at what makes it any stronger than a stock 700ml?

What powder have you been using, duplex loads?
 
pac11 said:
First question: So it the receiver is a standard 700ml with another barrel screwed on it?


So at what makes it any stronger than a stock 700ml?

What powder have you been using, duplex loads?
Click to expand...

The first thing is that remington doesn't recommend smokeless powder to be used in their stock muzzleloading rifles. I'm pretty sure the same steel is used for their muzzleloader barrels as their smokeless guns, but the disclaimer is there. The second thing is the breech plug used in their muzzleloader isn't adequate in design or length to handle smokeless loads, also the bolt and ignition is notorious for blow back and leaking.
The replacement barrel(s) used are intended for smokeless rifles , these two are .458 rifle barrels and the breech plugs and bolt modifications are all designed to handle smokeless loads.
So that is what makes it stronger than the stock 700 ml.
These rifles were built to be used .45 cal bullets sabotless , with bullets resized to fit each rifle, I have shot 300 grain bullets at approx 2600 fps and 200 grainers to 2800 fps with pressures in the low 40Kpsi , all safe loads.
I have only briefly used duplex loads but so far I have been able to achieve everything I presently require with single powder loads.

Juan, the webbing paint is rattle can krylon webbing paint I picked it up from the States and applied 5 coats of clear satin to help protect it, so far so good , the first stock I did ( the black/silver) is into it's 4th yr and still going strong.

I realize these rifles aren't everyones cup of tea, and to each their own. I have flinters, precussions and standard inlines. Right now this is my choice , I use them during the regular firearm seasons mostly and where permitted during muzzleloader seasons. I like the ease and convienience of use and cleaning and they are very effective.
 
So the bolt does not have any of the locking lugs of a reg. 700 cf rifle? I'm not familiar with this design, but would be concerned about pressure levels.
 
bp45cal said:
do you sell the bolt nose piece and breech plug?i'm interested if you do.thanks
Click to expand...
Presently these builds are for personal use only, no plans on selling any. sorry, I was just demonstrating what could be done with the stock remington ML.


ben hunchak said:
So the bolt does not have any of the locking lugs of a reg. 700 cf rifle? I'm not familiar with this design, but would be concerned about pressure levels.
Click to expand...
No the bolt doesn't have any lugs. it is modification to the stock remington muzzleloader design, just improved on the ignition and blow back issues. As for the pressure the stonger breechplug with the carbide ventliner prevents any back pressure from becoming a problem and so does the use of moderate responsible loads, pressures are kept in the 40K psi range.
 
ben hunchak said:
So the bolt does not have any of the locking lugs of a reg. 700 cf rifle? I'm not familiar with this design, but would be concerned about pressure levels.
Click to expand...

The bolt doesn't need lugs, as it doesn't take any of the pressure. The breechplug handles it.

Remington likely advises against smokeless powder due to the factory breech plug, not the barrel steel.
 
smokeeter, Very nice work!
I love the fact that somebody has successfully hot-rodded a smokepole to be a "real" rifle.
What are you using for powder?
I'm led to assume that a shotgun type powder would be used as in a sabot slug load, but then I think about a 45-70 and just have to wonder??? I like the 300 grainers at 2600!:D
 
Just got back from our hunt in Northern Ontario, used the new smokeless muzzy, 150 yrd shot, modified 300 gr nosler.
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heres a pic of the shoulder exit side, never did find the bullet , a complete pass thru
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Congrats on that fine moose and a good shot.

Bullet to the bore smokeless MLs are sooo coool - because they can be so accurate and effective. Maybe one day I'll get one. So far I've just managed to master a Savage MLII with smokeless for a few years. I talked to PacNor - they make a 45cal bullet to the bore smokeless tube for that rifle I was considering ordering -but never did. I'm playing with an Encore ML these days with Blackhorn 209 (of course NO smokeless in that one).

Again thanks 4 the enjoyable and inspiring report.
 
I could imagine that IMR 4198 or equivalent powder is being used for smokeless.
I've done the bolt/breech plug conversion on my 700ML, but no plans for a custom barrel at this time. I got tired of the excessive blowback in the original Remington design also. FFFG, Blackhorn 209 or White Hots will work very well in the stock .50cal barrel with sabot loads. More testing in the next month, but it looks like the Shockwave 250's are producing some good groups.

Nice rifles there smokeeter :)
 
I just finished another Remington 700 ML conversion, the donor rifle was a blued version this time,stainless models are becoming alittle more scarce. It has a 30 in custom .458 stainless barrel installed on it , I picked up a boltnose conversion kit which completely seals any blowback, it uses a standard 209 shotshell primer for convenience and had a breech plug with an extended snout and a savage style replaceable ventliner. The stock is one of remingtons LVSF stocks that was bedded and spiderwebbed again. Once again this one will be primarily used sabotless with resized .45 cal. bullets.









 
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Not sure how I missed this thread first time around, but this is really neat. My question is how do you load it with no ramrod? Am I missing something?
 
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