invest arms 50 cal nipple size

What is the nipple size on my invest arms hawken? It is a finer thread than my cva.

 

[Zonie]

Your CVA probably uses a M6 x 1 mm thread while your Hawken uses a M6 x .75 mm thread.

The "1" indicates the distance from one thread to the next is 1 mm or .039 of an inch.

The .75 mm thread indicates the distance from one thread to the next is .75 mm or .030 of an inch.

These threads correspond to what we could call a "course" and a "fine" thread.

 

[paulvallandigham]

A phone call to any of the suppliers that sell nipples, will get you the esxact dimension of the thread size on your CVA nipple. They have replaced thousands of them. The factory nipples on those guns are nothing to write home about. I recommend replacing the nipple as soon as possible, with no less than a stainless steel nipple. There are better nipples available at a bit more cost, like the Hot Shot, or the Spitfire. One of the replacement nipples is made of Berylium Bronze, and members here talk about using that same nipple for over 20 years with no sign of any wearing.

Go up to " Member Resources" on the Index page to this forum, and scroll down to "articles, Charts, and Links." The Links are to a vast number of suppliers. Click on any name there and you get that supplier's website, and on-line catalog. You can peruse the catalog on your computer to take a look at the different kinds of nipples offered, along with the different thread sizes.

If you take a visit to your local Hardware store, with that nipple, they have thread gauges in both American, and Metric threads you can use to determine the exact thread size yourself. Whether you buy a thread gauge for you own use is up to you. They are available. Most machine shops also have these gauges on hand. If you don't own a caliper, you should check the prices at MidSouth, or other suppliers of tools. You should be able to buy a dial caliper for about $20-$25.00. That way, you can do your own measuring of nipples, etc. to determine their inside or outside diameter.

Track of the Wolf, and others, sells oversized Nipples for those guns where the factory threads are damaged, and new threads are needed to be cut into the breech to take an oversized nipple.

Without physically examining your nipple and gun, Its impossible for any of us to give you an absolute, 100% accurate measurement on your nipple's thread size. We can tell you what the factory put in there, but not what you have now. CVA stopped selling Mountain Rifles almost 20 years ago.

 

[Dave Rosenthal]

A phone call to any of the suppliers that sell nipples, will get you the esxact dimension of the thread size on your CVA nipple. They have replaced thousands of them. The factory nipples on those guns are nothing to write home about. I recommend replacing the nipple as soon as possible, with no less than a stainless steel nipple. There are better nipples available at a bit more cost, like the Hot Shot, or the Spitfire. One of the replacement nipples is made of Berylium Bronze, and members here talk about using that same nipple for over 20 years with no sign of any wearing.

Go up to " Member Resources" on the Index page to this forum, and scroll down to "articles, Charts, and Links." The Links are to a vast number of suppliers. Click on any name there and you get that supplier's website, and on-line catalog. You can peruse the catalog on your computer to take a look at the different kinds of nipples offered, along with the different thread sizes.

If you take a visit to your local Hardware store, with that nipple, they have thread gauges in both American, and Metric threads you can use to determine the exact thread size yourself. Whether you buy a thread gauge for you own use is up to you. They are available. Most machine shops also have these gauges on hand. If you don't own a caliper, you should check the prices at MidSouth, or other suppliers of tools. You should be able to buy a dial caliper for about $20-$25.00. That way, you can do your own measuring of nipples, etc. to determine their inside or outside diameter.

Track of the Wolf, and others, sells oversized Nipples for those guns where the factory threads are damaged, and new threads are needed to be cut into the breech to take an oversized nipple.

Without physically examining your nipple and gun, Its impossible for any of us to give you an absolute, 100% accurate measurement on your nipple's thread size. We can tell you what the factory put in there, but not what you have now. CVA stopped selling Mountain Rifles almost 20 years ago.

Spot-on Paul :thumbsup: I'll just add my :2 and say this: What you want to wind up with when replacing your nipple is the ability to turn the new one in BY HAND, almost to the point of being left only with the need to "cinch-it-up" :wink: . This means getting the thread pitch to match as well. The net result is less wear to the breech (the female threads) and less of a chance of having to force a so-so fitting nipple into place, thus ruining the threads in the gun over time.

Hopefully your gun was well taken care of and the female nipple threads aren't already partially "buggered-up". One more thing: less than an eighth of a turn is usually required to cinch-up a properly fitting & properly installed nipple when using a nipple wrench. A good drop of oil on the CLEAN threads helps nipples to go in by hand :wink:

Good luck with your smokepole :thumbsup:

Dave

 

[mykeal]

My Lyman GPR has a metric M6x0.75 threaded nipple. The barrel is made by Investarms and is the same barrel used on their Hawken.

My CVA rifles all use a metric M6x1.0 threaded nipple.

I'd say Zonie nailed it.

Of course, Paul's advice is topical as well.