doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Pressure question, Kent TM

I know from my previous question about pressures that things change in each "batch". I wonder though, if anyone has any pressure info on the Kent TM loads in 2 3/4" 12g with 1 1/4oz of #5's.

I have read and heard that several guys use this in their vintage doubles for waterfowl. Since Waterfowl hunting is perhaps my favorite thing to hunt, I want to start using my trusty field Grade in this aspect. Has anyone pressure tested these loads? Sorry for the repeat question on pressures.

Avg. gas pressure 10,367.5 psi.

Thanks...I was thinking it would be up there.

Jagermeister:

Is that a tongue-in-cheek response?

If not,my apologies , and some questions.

Is that the Maximum Average? For the sample? For the lot? How large is the sample? which lot of shells was tested?

Regards

GKT

With that question, I too would like to know if the answer was just a "joke" or if for real? I assumed (one should never do that) that it was legit with the understanding things can and do change with pressures. However, if this was a number pulled out of the air, please advise.

Kent TM pressure 2 1/2-inch 1 1/16 oz fibre cup Nos. 5 and 6 is 7,500psi.

Their one-ounce load same length in Nos. 6 and 7 is 6,500 psi.

I don't know what the figures are, or where the quoted ones came from. But I do know that Kent is one of the few manufacturers that will answer that question with a direct answer if you CALL them. They do not publish their pressures, but seem to understand our need-to-know, and have always been very cooperative. I believe that the big three really don't know what pressures their loads generate beyond being in a certain range between enough pressure to operate an autoloader, and SAAMI max. I think Kent must load to a tighter range of pressure, because they have always given me a specific answer and not a long explanation about how it is difficult to say...

Upon taking your advice, I decided to go ahead and call them. You are right in that they were very kind and in just a few moments, they gave me the pressure info I needed.

Here is the info on the Kent TM Pheasant and Game loads, C122UGNT36-5 *12 2 3/4" MAX 1330 1 1/4 oz. 5's produce 9100 psi.

The info on the Kent TM load for waterfowl, C122NT36-3,5 12 2 3/4" MAX 1400 1 1/4 oz. 5's produce 9900 psi.

In this info where you see MAX that is Dram, followed by velocity.

Regarding helpful, they were very well represented at the Vintagers' Cup. I quizzed them on quality control(25 collected every hour for testing) and why the misfires after long exposure to moisture(they said all wick or leak around the primers).

Kind Regards,

Raimey
rse

I don't buy their pressure data, they don't use an actual pressure gun, just calcuate it. I know that independent ballistican's have pressure tested those loads way above what they report.