doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com 10 gauge chamber length

The jOe we all know.

You were wrong about adapters needing to be split. With that obvious you decided to go off on some sort of mean spirited tangent.

Not that it matters, but the "basket case" Scott/Lindner is in fine form. I shot a round of sporting clays with it at the U.P. SxS.

As to our history, it is not my job to describe anything. If you want to start a pissing contest, you'll need to put forward some effort.

I'm not wrong about the adapters going from 10 to 12 ga,....they need to be split for them to work right.

Here's a picture of mine.

While I have great respect for the knowledge of some here who use/have used chamber inserts to shoot a smaller gauge shell in a larger gauge gun, the reason(s) for doing so are totally lost on me. Inserts are terribly slow to reload, unless you've got a bunch of them that you can swap while shooting, and even then the aggravation of pushing out the empties from the tubes, etc., is just too tedious for me. I shoot short tens, Don, and load them to fit the gun (2 7/8"), but for the life of me I cannot see the reasoning in wanting to shoot a smaller gauge shell in a gun. I know this is a personal matter, for many of you enjoy doing so, obviously, but if I can't shoot the proper shells in a gun I'm just gonna get rid of it and get something with which I can.

Using full length tubes in a 12 ga. comp gun is a different matter, and is usually done by serious competitors by having a set of carrier barrels made that, when fitted with the sub-gauge tubes, will weigh the same as the 12 gauge barrels. This is to try and approximate, or equal, the shooting dynamics of the 12 when competing in sub-gauge events.

Please understand that I am not belittling anyone who enjoys this practice. In fact, I admire those who have the patience to submit to this kind of tedium while shooting. If I want to reload that slow I'll use my muzzleloaders.

Stan,
If you grind a notch in the top of the GaugeMate as jOe has done you can flick the emptys out with your fingernail (as long as you use Winchester AAs) leaving the GuageMate in the chamber. I don't reload is why I like to use them.
Steve

What gauge and chamber length gun are you using them in, Steve?

Stan

They do NOT need to be split to work just fine. The maker of yours chose that option but it is not a requirement.

For those of us that wanted to shoot 12's in our 10's before someone else designed and manufactured them for us, we made or had made our own. In the case of the ones Russ helped me with, they were not split and worked just fine.

Stan,

How is that Elsie 10 working for you? I rarely shoot anything but 10's in my Scott now, but 12-13 years ago I couldn't find an easy source for low pressure 10ga data. There was a lot of loads claiming to be, but never with published LUP or PSI readings. 12's on the other hand had abundant low pressure data.

Once Sherman Bell started the ball rolling and Jerry Lape picked up the ball on this site, it became relatively easy (for us here) to find data. I found a single 1 1/4oz load that uses the Federal hulls and SP10 wads I have in abundance and just change the shot size(and type) as needed.

Works good, Mike. I've loaded everything from 1 1/4 oz. bismuth 4's to 1 1/8 oz. no. 8's form it. It is without a doubt the hardest gun to get swinging I've ever had. MOI numbers would be off the chart. Don't matter for turkeys, tho'.

All my best, Stan

Don,

I believe you will be cutting down longer hulls to form the 2 7/8 shells anyway so proceed to trim them to the 2 5/8" instead. Since you are going to be loading 1oz loads, filler wads will be required. If you are using fiber wads for the fillers split them down a little to make up the proper crimp with a folded crimp. The same powder loads can be used and the slight variation in your filler wad won't make any difference to your pressures. If you are using a roll crimp with your loads somewhat lower pressures can be achieved and the length of a shell cut to length for a 2 7/8" load with a roll crimp will be easily accommodated in your chambers without problems.

If you need data for 10ga loads email me at jvlape@cox.net and I will give you a data dump which will fill your requirements.

The spilt 10 ga. to 12 ga once sprung to fit the chamber with the notch ground in them function flawlessly.....you cannot tell they are in the gun.

The one pictured in the center fits the bill with what you said the solid/un-split gauge mates going from 12 ga. to 20 ga. etc are next to worthless junk. Those are in the trash somewhere.

I used them in a 10 gauge 1878 Colt with 2-7/8 chambers. Sprung to fit the chambers like jOe mentioned, and using Winchester AA's, they worked great. With some other brands the shells would sometimes stick so you couldn't pull them out with your fingernail.
Steve