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That would only tell me the temperature, not if the POI itself is starting to wander from heat. I reckon the only way to really know is actual DOPE.Buy a stick on thermometer and measure it instead of guessing?
Speaking of dope, ughhh.....maybe yer target will tell you when poi shifts. At that point record the barrel temp for future reference.That would only tell me the temperature, not if the POI itself is starting to wander from heat. I reckon the only way to really know is actual DOPE.
Thats more what I was looking for.If the barrel is too hot to hold onto then it’s likely your groups will open up. The number of rounds it takes to excessively heat the barrel will depend on your barrel profile. But 10 to 20 rounds fired in rapid succession will be enough to excessively heat most barrels.
When the barrel is cool enough to hold with your bare hand accuracy should return to normal.
At $2 for each trigger pull m trying to keep it to a minimum but thats likely what it would take. Being as the MV is about 3K it heats up pretty quickly.Shit, build your own dope. Post up 6 targets. Shoot a 5-shot group. Shoot another. And another, etc, until you have put 30 shots down range in quick succession. Heck, get one of those thermometers mentioned above and have a friend record the starting and ending temp for each group. Now go down range and get the targets. Measure the groups. If you can’t tell any difference between groups 1 and 6, don’t worry about heat.
Evidence suggests that groups will open up, but the group center shouldn’t wander- at least with modern barrels.