Want to add weigh to your KRG Chassis?

T

thisguy65

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Apr 3, 2017
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#1
A good friend, Scott Whitehead and I came up with brass weight system that attaches to the backbone of the KRG Bravo, Whiskey and X-Ray. The system with hardware add right at 1.07 lbs to your rifle. Was seeing if any guys would be interested in something like this?
Would include both flag nuts and low profile hex, screws and weight. FOr the guys that run forend, I'm working on that design now.
 

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#5
Looks interesting. I would also like to see weights that fit into the grip and replace the butt plate/LOP spacers (Bravo). The Bravo is a great chassis. Having a variety of weight options to add would give the user more flexibility.
 
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#6
What is the point? Order the Al forend if u want weight or plastic if u don't . People are specificlluly ordering the poly forarm to keep weight down. I had the gen 3 and the last thing I would want is to make it heavier.
 
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#7
atomic41 said:
Looks interesting. I would also like to see weights that fit into the grip and replace the butt plate/LOP spacers (Bravo). The Bravo is a great chassis. Having a variety of weight options to add would give the user more flexibility.
Click to expand...
LOP spacer are in the works.


Primus said:
What is the point? Order the Al forend if u want weight or plastic if u don't . People are specificlluly ordering the poly forarm to keep weight down. I had the gen 3 and the last thing I would want is to make it heavier.
Click to expand...

Depends what the purpose of the rifle is. A lot of people in PRS are adding weight to their rifles. These add 1 pound
 
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#8
I totally understand why some folks add weight to their chassis, I also understand why others like lighter rigs. This definitely fills a niche in the market with other mfg's adding weight to their systems, Masterpiece arms and XLR come to mind.....

One thing to keep in mind is the corrosive reaction between brass and Alloy in the chassis. Brass and aluminum react and cause galvanic corrosion- big time! Aluminum is much more anodic and brass is cathodic. the chassis anodizing will not be enough to protect.

I have personally experienced this in the boating world with a brass adjustment fitting contacting and alloy sailboat mast. In less than 6 month the brass corroded a hole almost completely through the mast where there was contact- even through the anodizing! It basically turns the aluminum into powdery dust. This was a freshwater boat- this would happen even quicker in saltwater but it can occur even without water- just the dissimilar metals reacting.

It may be wise to choose another material than brass for your weight system, like steel or stainless. If not make sure to but a barrier between the metals or a protective coating other than anodizing. If not you may have an unwelcome science experiment in your chassis.

Looks like a great option for additional weight requirements- nice work!

Cheers
 
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#10
Shortbus6588 said:
I totally understand why some folks add weight to their chassis, I also understand why others like lighter rigs. This definitely fills a niche in the market with other mfg's adding weight to their systems, Masterpiece arms and XLR come to mind.....

One thing to keep in mind is the corrosive reaction between brass and Alloy in the chassis. Brass and aluminum react and cause galvanic corrosion- big time! Aluminum is much more anodic and brass is cathodic. the chassis anodizing will not be enough to protect.

I have personally experienced this in the boating world with a brass adjustment fitting contacting and alloy sailboat mast. In less than 6 month the brass corroded a hole almost completely through the mast where there was contact- even through the anodizing! It basically turns the aluminum into powdery dust. This was a freshwater boat- this would happen even quicker in saltwater but it can occur even without water- just the dissimilar metals reacting.

It may be wise to choose another material than brass for your weight system, like steel or stainless. If not make sure to but a barrier between the metals or a protective coating other than anodizing. If not you may have an unwelcome science experiment in your chassis.

Cheers
Click to expand...
You are absolutly right, and was though about. I contacted some marinas to inquire about how they combated this since in alot of cases a different material is not offered. We had a wide range of answers and currently testing something as simple as clear coat or other coating. Problem is out goal is to reach 1lb, steel is not a dense as brass. However a lot of steels move more than brass when machining so extra time is spent to make a part, accurately. I have some steel I plan to run and see how it goes. Thank you.
 
#14
thisguy65 said:
A good friend, Scott Whitehead and I came up with brass weight system that attaches to the backbone of the KRG Bravo, Whiskey and X-Ray. The system with hardware add right at 1.07 lbs to your rifle. Was seeing if any guys would be interested in something like this?
Would include both flag nuts and low profile hex, screws and weight. FOr the guys that run forend, I'm working on that design now.
Click to expand...

Just a heads up to you we have this very thing in the works as well as steel LOP spacers and a couple other weight adding items. I don't mean to take away from what you are doing just didn't want you to think we ripped you off.
Justin
 
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#15
Massoud said:
Just a heads up to you we have this very thing in the works as well as steel LOP spacers and a couple other weight adding items. I don't mean to take away from what you are doing just didn't want you to think we ripped you off.
Justin
Click to expand...

This is after you gave us crap for wanting it? :LOL: I'm only teasing you. I remember you commenting on how you designed it to be lightweight and you were just razzing us a bit.

I actually think this takes what is already a great chassis and brings it to a whole new level. The ability to tune the weight where you want it is awesome and might have some folks doing double-duty. I mean I like the idea of taking my match rifle hunting by easily shedding the weight. (except barrel obviously)
 
#17
Massoud said:
Just a heads up to you we have this very thing in the works as well as steel LOP spacers and a couple other weight adding items. I don't mean to take away from what you are doing just didn't want you to think we ripped you off.
Justin
Click to expand...


Different options for different folks. Scott came to me, I shoot more traditional stocks my self, wanting to make this and few other items. He had the idea and I just made it feasible.



Shanerbanner10 said:
I'd be interested if it was more than 1lb on the forend. make it 2-3 and take my money.
Click to expand...

We have other things in the works. For the area, 2-3 pounds is going to be tough, not saying it's impossible. The new piece I'm working on could very well get you in that mark.
 
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#21
I’ve added over 2lbs to one of my Bravos by putting lead round balls in the grip, in the butt hook cavity and in the recoil pad cavity. Put them in small plastic bags first to keep them from rattling. Label each bag and you can remove them for hunting and put them back easily.
 
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#22
RFutch said:
I’ve added over 2lbs to one of my Bravos by putting lead round balls in the grip, in the butt hook cavity and in the recoil pad cavity. Put them in small plastic bags first to keep them from rattling. Label each bag and you can remove them for hunting and put them back easily.
Click to expand...

That's common thing, basic but get the job done.

BCP said:
Mines already a tank, I didn't know they designed it to be light. If it were a long action or mag caliber instead of 308 a pound or two extra would be nice though.
Click to expand...

Good friend uses the weight system and shoots 6.5 creedmoor
Banango said:
I'd be interested in this if the corrosion issue got worked out. It would also be nice to add more than 1 pound to the chassis but a good bit of that weight is going to need to be towards the rear
Click to expand...

That's been worked outusing dual stage. Different brass react differently. This brass reaction, only show if the metal is wet. Surface area is key in esting, took a 4x4" block of brass and a 0.5" by O.5" of alum, wet both and lay the alum on top.
 
#26
I would think that the dissimilar metals corrosion issue would be fairly minimized unless you have the floating ground and marine currents associated with a marine environment. I can't imagine getting induced current on land and it resulting in corrosion between the brass and aluminum.

Looks like a good setup to me. I have seen lead tape used and it's fairly inelegant and a pain to put in and to take out.
 
#27
NWnewguy said:
I would think that the dissimilar metals corrosion issue would be fairly minimized unless you have the floating ground and marine currents associated with a marine environment. I can't imagine getting induced current on land and it resulting in corrosion between the brass and aluminum.

Looks like a good setup to me. I have seen lead tape used and it's fairly inelegant and a pain to put in and to take out.
Click to expand...


in my testing, I didn't see any thing unless water was added. However I'm using a 2 step approach to minimize it.
 
#28
Did anyone here purchase a weight set or were they made to sell? Sent a PM to OP but nothin back and not sure when KRG will produce one.
 
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