Ok how to cut some weight on DPMS creedmoor

#5
Re: Ok how to cut some weight on DPMS creedmoor

ThinIce,

I started out with a DPMS LR308 with a 24inch SS Bull barrel. It weighed the same as your 6.5 Creedmore. I got my rifle to under 8lbs by
1. Re-profiling the barrel to .750 throughout the length (from just past the chamber all the way to the muzzle)and shortended the length to 16". If you do the math, the difference between a 16" and 20" barrel is about 8ounces for the same barrel diameter, so re-profiling is the best bang for the buck, and you can hang onto some muzzle velocity to boot.
2. Changing out the vented handguard for a DPMS carbon fiber free float tube. Do NOT get the PRI or JP CC handguard, as they offer NO weight savings over the plain DPMS aluminum handguard.
3. Swapping the A2 stock to a collapsible VLTOR buttstock.

You can shave significant weight off your barrel by re-profiling your barrel from the .983 bull profile to a lighter weight profile, say .750inches without needing to cut down the length of your barrel.



 
#6
Re: Ok how to cut some weight on DPMS creedmoor

1. Lightweight, fluted, 20 inch barrel (shortchanges you on velocity for long range stuff though...over 800 meters)
2. Carbon fiber handguard
3. Lighter scope, rings, base
4. Lightweight compensator VS a 1.5 pound comp
5. Lightweight bipod

Although I know nothing about you personally, I often find it interesting when guys who are 40 pounds overweight, gripe about 5 pounds on a rifle...
 
#7
Re: Ok how to cut some weight on DPMS creedmoor

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tx_Flyboy</div><div class="ubbcode-body">ThinIce,

I started out with a DPMS LR308 with a 24inch SS Bull barrel. It weighed the same as your 6.5 Creedmore. I got my rifle to under 8lbs by
1. Re-profiling the barrel to .750 throughout the length (from just past the chamber all the way to the muzzle)and shortended the length to 16". If you do the math, the difference between a 16" and 20" barrel is about 8ounces for the same barrel diameter, so re-profiling is the best bang for the buck, and you can hang onto some muzzle velocity to boot.
2. Changing out the vented handguard for a DPMS carbon fiber free float tube. Do NOT get the PRI or JP CC handguard, as they offer NO weight savings over the plain DPMS aluminum handguard.
3. Swapping the A2 stock to a collapsible VLTOR buttstock.

You can shave significant weight off your barrel by re-profiling your barrel from the .983 bull profile to a lighter weight profile, say .750inches without needing to cut down the length of your barrel.



</div></div>





re-profiling.......wow......what brain damage......i mean could you not just sell the troutt line and buy a new lite-weight-go-fast good barrel........come the fuck on DUDE
 
#8
Re: Ok how to cut some weight on DPMS creedmoor

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tx_Flyboy</div><div class="ubbcode-body">ThinIce,

I started out with a DPMS LR308 with a 24inch SS Bull barrel. It weighed the same as your 6.5 Creedmore. I got my rifle to under 8lbs by
1. Re-profiling the barrel to .750 throughout the length (from just past the chamber all the way to the muzzle)and shortended the length to 16". If you do the math, the difference between a 16" and 20" barrel is about 8ounces for the same barrel diameter, so re-profiling is the best bang for the buck, and you can hang onto some muzzle velocity to boot.
2. Changing out the vented handguard for a DPMS carbon fiber free float tube. Do NOT get the PRI or JP CC handguard, as they offer NO weight savings over the plain DPMS aluminum handguard.
3. Swapping the A2 stock to a collapsible VLTOR buttstock.

You can shave significant weight off your barrel by re-profiling your barrel from the .983 bull profile to a lighter weight profile, say .750inches without needing to cut down the length of your barrel.

</div></div>

yes from what i have seen that is about right. Give up a little for some weight. I was considering using some of JP's techniques. Thanks for the mention. I'll save some bucks.
 
#9
Re: Ok how to cut some weight on DPMS creedmoor

Boltripper's solution is FAR more practical. Buy a second upper for the cost of all that monkey business. I prefer versatile to duding a rifle up.

Might be just me but lightening up the buttstock works against my ability to shoot offhand. The front end feels much heavier, with more wobble.

One thing about an AR, push two pins and you have a switch barrel.
 
#12
Re: Ok how to cut some weight on DPMS creedmoor

ThinIce,

Ignore BOLTTRIPPER's advice. It's generally unwise to take advice from someone with the ettiquette of a 4 year old.

Go to ADCO's website,

Contouring entire barrel will cost you $110.

Disassembly + re-assembly of your upper = $50. You can do this urself and save money though.

Then there's shipping both ways.

This is all still less than the cost of just a new 6.5 Creedmore barrel.

I'm pretty sure you can't get a brand new barrel, upper, and have your bolt headspaced to the new barrel for less than the sum of the above.

If money's no object, then u can follow follow the 4-year old's (BOLTTRIPPER) advise, and spend 60-80% of the cost of new rifle...
 
#13
Re: Ok how to cut some weight on DPMS creedmoor

Tx_Flyboy said:
ThinIce,

Ignore BOLTTRIPPER's advice. It's generally unwise to take advice from someone with the ettiquette of a 4 year old.

end quote

You are too kind; that kind of talk would get a 4 year old a spanking around here, otherwise point well taken. There are too many "macho men" trying to prove how tough-smart they are on this forum.
Click to expand...
 
#14
Re: Ok how to cut some weight on DPMS creedmoor

Hey guys. I know Bolt. He's a nice guy. His sense of humor goes over the head of some. Btw, he's one big mo fo if you haven't met 'em.

A big chassis ARs were not meant to weigh anywhere near what a small chassis AR weighs. A 6.5 Grendel might have been the better choice for a shooter seeking a lighter AR. Big chassis AR's are more difficult to shoot well anyway due to heavy recoil impulses caused by the heavy bolt carrier group.

Big chassis ARs are cool, and 30 m/m scope tubes to go on top are too, in addition to a mag full of ammo stuffed into the well.....clicking across a nice grade with this stuff on the back in hot, dry climates,.....but all this cool lookn` stuff be heavy if you aint up to it, dude. Go small/light and be happy, or accept that to shoot a hot, big chassis is gonna be a little heavier. They are nice. I had one until the sonofabitch got stolen!
 
#15
Re: Ok how to cut some weight on DPMS creedmoor

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tx_Flyboy</div><div class="ubbcode-body">ThinIce,

Ignore BOLTTRIPPER's advice. </div></div>

+1.

I have an 18" 308 using a Krieger M110 contour barrel. It is too heavy under the handguard. And this is with a CF Mk12 Mod 0 type PRI HG.

I have done some work on making a run of 308 barrels that are lighter under the handguard to help address this issue. While I am anti-fluting as a general principle, I may do it in this application.

The receivers are only a bit more weight, but the extra length does push the barrel weight further forward, adding to the heavy feeling. All the rest of the parts, sans the BCG, are the same as AR-15.

The barrel is the place to look for relief.
 
#17
Re: Ok how to cut some weight on DPMS creedmoor

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tx_Flyboy</div><div class="ubbcode-body">ThinIce,

Ignore BOLTTRIPPER's advice. It's generally unwise to take advice from someone with the ettiquette of a 4 year old.

Go to ADCO's website,

Contouring entire barrel will cost you $110.

Disassembly + re-assembly of your upper = $50. You can do this urself and save money though.

Then there's shipping both ways.

This is all still less than the cost of just a new 6.5 Creedmore barrel.

I'm pretty sure you can't get a brand new barrel, upper, and have your bolt headspaced to the new barrel for less than the sum of the above.

If money's no object, then u can follow follow the 4-year old's (BOLTTRIPPER) advise, and spend 60-80% of the cost of new rifle...</div></div>




i love it when some dick head starts talking about spending other peoples money and has absofuckinglootly no flippin CLUE as to what really do happen to the INSIDE of a barrel that gets RE-Contoured.......



let this 4 year old tell yah......you end up with a very expensive door stop.....or a real nice cheater bar,,,,,or a very fancy truck axle, or.......a nice tomato stake......
 
#18
Re: Ok how to cut some weight on DPMS creedmoor

What is your use of the rifle? Do you shoot off-hand? Do you run and gun in comps? Or do you just take from safe to car to bench?

Weight may be your friend, or not depending on your answers above. I would worry more about balance than weight. A well balanced rifle feels less than it really weights.
 
#20
Re: Ok how to cut some weight on DPMS creedmoor

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Low Sioux</div><div class="ubbcode-body">So how is RE-contouring a barrel any any different than contouring a blank to begin with? </div></div>

Blanks are contoured prior to stress relieving and final lapping.
 
#21
Re: Ok how to cut some weight on DPMS creedmoor

you can save a lot of weight with a 5 rd mag instead of 20 and go workout more, maybe??
hope this helps.
smile.gif


Cheers
 
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