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bdhuntr

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Registered: 01/24/06
Posts: 11,102
Reply with quote  #1 

I love my Remington 700 MLS .50 caliber, but I've always wanted to shoot more modern powders, and for that you need 209 primers (unless you get real crazy and get a .25 ACP case conversion to use small rifle primers). Years ago I bought Remington's 209 conversion kit, but it was a true POS and a waste of $60.00 or so. Hangfires aplenty and blow-back to the extreme.

So being laid-up and out of the bowhunting game for who knows how long due to this #$%@! fractured arm, I starting researching 209 conversions for the 700 MLS and I found what looked to be a great one for only $80.00. Thanks to my wife for getting this for my birthday (nice surprise, huh?). It's awesome!

Here's the bolt assy:



The primer holder is a piece of machined steel that snaps onto the bolt body exactly like the plastic weather shroud does. Here's a close-up:



It has a slot machined into it that holds a 209 primer just like a shell holder holds a case in a reloading press. The firing pin is a true firing pin, which replaces the cup-like assembly that was essentially a slam-fire bolt. It isn't a real tight fit, so spent primers can be removed easily without tools, but it won't just fall out, either.

Here is the new breechplug with the ventliner installed. The face of the breechplug accepts the primer like a rifle chamber accepts a cartridge, and the ventliner forces the primer flame into a jet (and also protects the breech plug from getting burned out). It is removed/replaced with the original Remington breech plug removal tool (or a deepwell 9/16" 6-point socket and ratchet):



This is a pic of the bolt assy with a primer installed in the holder, with a primer seated in the breechplug. Camming the bolt closed seals the breechplug from blow-back, creating a sealed breech that will allow the usage of Blackhorn 209 powder:



I won't be able to install the breechplug in the rifle and/or shoot it for at least a couple of weeks, until this arm heals up more. But I can't wait to send a few bullets downrange with this. It looks awesome! I really want to to try the 250 grain Thor bullet (a bore-sized Barnes X-Bullet with Ballistic Tip and concave Minie Ball-type base).



esmd

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Registered: 06/10/07
Posts: 6,096
Reply with quote  #2 
Brian, did you find that on that Savage site I sent you a link to way back when?  That looks like a conversion a lot of guys do, and a lot of them also get replacement barrels and shoot smokeless powder.

That rig is almost exactly like the bolt/breech set up on my Savage muzzleloader.  I love it, it's simple, and it works great.  One piece of advice I'll give you is to get some extra vent-liners if you haven't already.  The Savage ones wear out after 100-150 shots.  The hole gets too big and accuracy degrades.  I check mine with a set of torch tip cleaners.  I think a brand new plug takes like the 3rd smallest cleaning rod.  Once the hole gets big enough to take the 5th or 6th smallest cleaning rod, it's time for a new ventliner.

You're going to really like that setup once you get it up and running.
gunman

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Registered: 01/08/07
Posts: 3,666
Reply with quote  #3 

I will have to tell my buddy about this he is all but ready to abandon his for the same POS reasons.

bf


Registered: 04/17/06
Posts: 798
Reply with quote  #4 

I need one for mine. Where can I order this?  Thanks

bdhuntr

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Registered: 01/24/06
Posts: 11,102
Reply with quote  #5 

Quote:
Originally Posted by esmd
Brian, did you find that on that Savage site I sent you a link to way back when?  That looks like a conversion a lot of guys do, and a lot of them also get replacement barrels and shoot smokeless powder.

That rig is almost exactly like the bolt/breech set up on my Savage muzzleloader.  I love it, it's simple, and it works great.  One piece of advice I'll give you is to get some extra vent-liners if you haven't already.  The Savage ones wear out after 100-150 shots.  The hole gets too big and accuracy degrades.  I check mine with a set of torch tip cleaners.  I think a brand new plug takes like the 3rd smallest cleaning rod.  Once the hole gets big enough to take the 5th or 6th smallest cleaning rod, it's time for a new ventliner.

You're going to really like that setup once you get it up and running.

Bill, this is not from the Savage site. The ones on that site are modified Rem 700 centerfires that are rebarrelled with muzzleloader barrels with breech plugs that use trimmed 6mm Rem cases for the ignition system. It allows the locking lugs of the bolt to lock as tightly as they do in a centerfire rifle, so one can use smokeless. But that's like a $600.00 modification....not counting the cost of the original 700 rifle.

As you can see, my bolt has no locking lugs. It basically "locks up" with the bolt handle in the cut-out of the stock, and a slot milled in the bolt body in which a bolt guide/lockdown screw rides in. You cannot shoot smokeless in a Rem 700 MLS. No matter. BH209 should be good enough, and the actual barrel is made just as well as any Remington Model 700, as is the excellent Remington trigger. The real plus to this mod, besides switching from #11 caps to 209 primers, is switching from a slam-fire to a bolt with a true firing pin.

bf/gunman, I cannot access the link right now (I can when I get home), but it is under the Inline section in Modern Muzzleloading's forum. Look for a thread for Rem 700 209 conversion by derfhunter. If you contact him, tell him you heard about this from bdhuntr (I post there under the same screen name).
HogSniper


Registered: 08/31/10
Posts: 64
Reply with quote  #6 

Where did you get that conversion and who made it?

bdhuntr

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Registered: 01/24/06
Posts: 11,102
Reply with quote  #7 
Quote:
Originally Posted by HogSniper

Where did you get that conversion and who made it?

Derfhunter from modermuzzleloading .com forum.

http://www.modernmuzzleloader.com/phpBB/viewtopic.php?t=16218
tristan1127

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Registered: 08/10/06
Posts: 3,639
Reply with quote  #8 

I can't believe that you had problems with the conversion kit from Remington.  I have the same exact gun and the Remington conversion kit and have never had a problem.  As long as you clean it all the way, by taking everything apart down to the punchhole piece, you should never have a problem.  Remington didn't say anything about this?

bdhuntr

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Registered: 01/24/06
Posts: 11,102
Reply with quote  #9 
Quote:
Originally Posted by tristan1127

I can't believe that you had problems with the conversion kit from Remington.  I have the same exact gun and the Remington conversion kit and have never had a problem.  As long as you clean it all the way, by taking everything apart down to the punchhole piece, you should never have a problem.  Remington didn't say anything about this?

I had problems from go. IMO, it's a POS. No firing pin; just a tit on the concave face of the bolt. And the 209 primer holder is a slotted piece of crap that lets out way too much blow-back, to the point that it burns and ruins a scope.

powerlineman

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Registered: 12/26/07
Posts: 386
Reply with quote  #10 

cool conversion     great gun  got a bad name because bolt would seize up from not cleaning  as long as you take bolt apart and clean you should have no problems 

CoptrDr

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Registered: 08/14/07
Posts: 1,876
Reply with quote  #11 

I had the Remington conversion kit on my 700ML.  Never had a problem with misfires but there was an awful lot of blowback.  Also, removing the spent primers was a pain in the A$$ sometimes. 

bdhuntr

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Registered: 01/24/06
Posts: 11,102
Reply with quote  #12 
Quote:
Originally Posted by CoptrDr

I had the Remington conversion kit on my 700ML.  Never had a problem with misfires but there was an awful lot of blowback.  Also, removing the spent primers was a pain in the A$$ sometimes. 

Yeah, that too!

Buckrub243

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Registered: 01/28/07
Posts: 5,483
Reply with quote  #13 
Quote:
Originally Posted by bdhuntr
Quote:
Originally Posted by CoptrDr

I had the Remington conversion kit on my 700ML.  Never had a problem with misfires but there was an awful lot of blowback.  Also, removing the spent primers was a pain in the A$$ sometimes. 

Yeah, that too!


Blowback, primer removal and careful bolt & firing pin cleaning, but, mine shoots like a centerfire w/ the 295 Powerbelt and 2- 777 pellets, so I can live with it !!!
tristan1127

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Registered: 08/10/06
Posts: 3,639
Reply with quote  #14 

.348 Powebelts (without the aerotip!) for me.  Deer hit with those don't move.

sika

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Registered: 12/08/06
Posts: 2,489
Reply with quote  #15 

I gave mine to my son, but I can't get the spent primers out. I remember when I got it they gave some little screwdriver tool, but that was lost within weeks. Any advice? I, too, think it's an accurate gun and would like to keep it, I just need to figure out the primer removal.

bdhuntr

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Registered: 01/24/06
Posts: 11,102
Reply with quote  #16 
Quote:
Originally Posted by sika

I gave mine to my son, but I can't get the spent primers out. I remember when I got it they gave some little screwdriver tool, but that was lost within weeks. Any advice? I, too, think it's an accurate gun and would like to keep it, I just need to figure out the primer removal.

If I can find my old primer removal tool, I'll send it to you. All it is is basically a tiny screwdriver handle with a piece of bent wire that fits in the slots and slides the primers out.

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