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Post by ET on Feb 6, 2020 16:41:29 GMT -5
The other day on a job assignment I had to do a dye-check on some stainless welds. This requires the material to be minimum 50F and is checked with a Digital Infrared Thermometer to verify. I got the thought of “Would this work on my SML bore?” So today I tried it and it appears it does. I checked the outside barrel temperature, did another check elsewhere to change the reading and then tried a check of the bore. Barrel and bore temp were exact. Okay this is worth further investigation. It would make for a good tool for monitoring bore temp in the summer. Now I’ve been away for some years and need to ask if anyone else has tried this.  Ed |
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Post by jims on Feb 6, 2020 22:06:49 GMT -5
I know on this or similar sites that heat determining equipment was used for this purpose. Cannot give the exact location. Those with better recall or how to find things from the past will be able to help. I remember the units were not all that expensive and I thought used in the automotive world for brake temps or some such.
More of a need with sabotted rifles, sabotless I think it is somewhat less of a factor.
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Post by ET on Feb 6, 2020 22:27:12 GMT -5
I agree with your comment about sabot and sabot-less need.
These units are not expensive but would be an asset for monitoring bore temp (if they work) with summer temps and sabot use and I'm a sabot user, chuckle.
Ed
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Post by edge on Feb 7, 2020 11:10:26 GMT -5
Someone on the old board used a similar tool, there was discussion of different tools back around 2007.
edge.
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Post by ET on Feb 7, 2020 16:21:01 GMT -5
Someone on the old board used a similar tool, there was discussion of different tools back around 2007. edge. The last time I remember of anyone trying to measure bore temp was Rossman40 who made a thermal couple probe to go into the bore. If I remember correctly he found 4F increase per shot. If this digital infrared thermometer works it will only take seconds to take a reading and it is not cumbersome to use. It will be enough of a chore to monitor load resistance change with ambient temp change. This tool would help ensure sufficient time with cooling rod so bore temp doesn't affect what I want to monitor. Ed |
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Post by Richard on Feb 9, 2020 19:42:40 GMT -5
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Post by ET on Feb 9, 2020 23:04:00 GMT -5
Richard Thanks for your suggestion but this would work better with sabot-less. The internal bore temp will always be higher when you begin shooting. This is what I want to observe because I’m still using a plastic sabot that is affected by temp. Here I hope to prove how much affect this will have on load resistance (bore tightness fit) through a range of temp change. Just a lot of questions I hope to find accurate answers for. But first I need to see the response from the Digital Infrared Thermometer. Hopefully it will show the highest temp wherever that is located in the bore. Now if anyone is getting into SML I would recommend they go sabot-less, if they can afford it. There are many like yourself that from your experience can help others get on track fairly quickly. Also, no real challenges left there for me. My playground with the 10ML-II still has some interesting challenges. As for me I started from the beginning with sabots and want to finish here. The old girl has always consistently put meat in the freezer and always a few surprises to keep me on my toes. Ed |
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Post by ET on Mar 12, 2020 18:02:38 GMT -5
Okay, I was at the range today to do numerous tests and one of them was checking out the digital infrared thermometer. My first bore measurement was 47F that caused my sabot load that was last checked at 20 plus pounds now was very close to 40lbs. I kept shooting and allowed the barrel to warm. When my bore temp measurement got to 60F my load resistance came back down to 20 plus lbs. Now with other conflicting measurements today I forgot to double check my outside barrel temp to ensure it was a lower reading than my bore temp. Next time.
Ed
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Post by jims on Mar 12, 2020 19:49:38 GMT -5
Some use a tape on material to read the temperature of the barrel. Another aid perhaps.
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Post by ET on Mar 12, 2020 21:34:23 GMT -5
Some use a tape on material to read the temperature of the barrel. Another aid perhaps. That tape only measures the outer barrel temp not the inner bore temp. When heat transfers through material there is some heat loss by the time it gets to the opposite side of where heat is originally applied. What I have learned from this of temp effect on sabot is that in colder temp the sabot becomes more rigid increasing load resistance. I need to reduce bullet diameter to offset this. So I'm going to start a small reference chart to keep the load resistance to a given. The learning continues. Ed |
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Post by luv2shoot on Mar 28, 2020 10:25:56 GMT -5
Been using my Fluke thermal on barrels for years while at range. Great for using while grilling too,
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Post by billc on Mar 28, 2020 10:56:57 GMT -5
Been using my Fluke thermal on barrels for years while at range. Great for using while grilling too, Now for grilling is a use I can get behind!! Not to slight shooting, but my belly shows more use than my trigger finger  |
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