I heard 748 also is better on barrels...
I made a cotton barrel wrap from old tee shirts, double them up sew in a tube shape slide over and wet down, run a split the length of the forearm, Velcro strap at chamber to keep in place, make it a bit loose to suck heat off the barrel.
I feel my moly coating is a big factor along with keeping the wrap wet
I have an ongoing experiment to see how many rounds of one particular powder (W748) and one moly bullet (40-grain lead-free Ballistic Tip) can go in a particular barrel. I'm using a 26" Krieger 1-9". so far, 4,640 rounds. Barrel looks new compared to those photos & still shoots 3/8" MOA. Test taking forever as I tend to use heavier (50-55 gr.) bullets shot from other uppers. Started out at 1/4" MOA. Maybe I'll switch to 50 grain bullets at around 7,000 rounds. I get barrel pretty warm sometimes but not scorching. I have stuffed gauze under my handguard a few times and watered down to keep things cool but only a few times when that was the only rifle I took with me.I heard 748 also is better on barrels.
223, 50g vmax, handload
Running out of ammo - tough problem! amazing barrel life. My rem 5R 223 likes H335 also. I hope to be getting out end of the month to sling lead at Pdogs. Know it will be HOT. Thanks for the post. looks like fun.Of ammo shooting pdogs today, never had that happen. Shot an even 450 rounds from 650 am to 215 pm when I ran out. My fault as I normally pack 600 rounds in my bag. My McGowan 14 tw, ss 24" barrel has 14365 rounds through it as of today and it just keeps on going. I shoot nothing but moly coated bullets through it just for pdogs, coated in my tumbler. Yup it still prints sub moa at 100 yds.
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Lots of doubles on the pups.
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223, 50g vmax, handload
What state were you shootingin?