Home Forums Hunting & Shooting Competitive Shooting Reloader 15 & temp sensitivity; who has tested ii?

From what I understand, and I'm really not one to pry, since the world's he's been doing a great deal of 7mm. I think .224 and .308 are less in demand, or just not as much as the 7 and even the 6.5.

Swampy has really done a great job of producing excellent bullets at a good price. I use his 180gr LBT VLD in .308 and his 80gr .224 VLD with very good results (when I don't screw up.)

I have also tried the Berger 185gr HPBT LR when I ran out of Swampy's bullets and they worked very well also. They are more expensive, but much more readily available.

What I like about Bergers and JLKs are the fact the meplat is much smaller and better formed than the SMKs; I don't have to pint or trim them.

Just to get back to the temp sensitivity thing ,I did a little bit of testing a few years ago with what I consider the most temp sensitive powder I have ever used H380. I loaded it up in 223 w/69gr bullets, in 22-250 w/55gr bullets and in 220swift w/55gr bullets. I worked up loads for all 3 rifles shooting through my chronograph in 65 degree weather just after sunrise. I went home and loaded the best combinations I had found for each and returned to the same place that afternoon when the temp was just over 80 degrees. my 223 did shoot a bit faster but no ejector marks and a easy bolt lift, my 22-250 shot quite a bit faster and had a light ejector mark on the case and a noticeably flatter primer but an easy bolt lift,on my 220 swift I only fired 1 shot and my bolt was frozen and my chronograph said 300fps faster than earlier that morning.
So my point is even with a temp sensitive powder it can be quite a bit more or less temp sensitive depending on your chambering.
The only rifle that I am shooting right now using RL15 is my 6 Dasher shooting 95gr VLD Berger's, temp sensitivity has not been an issue with this combination.
B

So after reading this entire thread, Can I load some 64 gr power points for my AR with a 14.5" barrel and get 300 yard minute of coyote accuracy using RL-15 since I happen to have a bunch of it? 1:7" twist

If I were you I'd delete the barrel length you've quoted.

Just sayin...

might be a legal sbr?

It's legal. It has a birdcage on there that makes it over 16", but the rifling is only 14.5. Bought legally from the local shop. Its a Sabre Defence. Birdcage is permanent, fixed stock. meets length requirements.

Cool!!!

Hows it shoot?

Michigan doesn't trust residents with SBR's...

I am sure it shoots better than I do. I wanted a short, light gun and that is what I bought. If i was more serious about accuracy I would have one with a 20-24" barrel on it and the front post would not be there so I could mount my scope lower, but this one is fun to mess around with. Havent killed anything of note with it, but planning a couple coyote trips this winter. I have some factory ammo for it now, but have all the components to reload the Winchester 64 gr PP on top of RL15 but might be getting scared out of the powder. I just need it to be decent, not a bench gun or anything. If I could get a 5-6" group at 300 yards I would be happy with that, knowing I am not that great with the gun and also knowing anything past 200 is unlikely.

RL 15 is more temp sensitive than Varget and burns alot dirtier.

I run Varget in both of my 6.5x47's but, it also shot a tad bit better than RL 15 did. If the RL 15 would of shot better I would of used it.

I also noted the temp sensitivity in my 308 also.



I run 37.5 grains of Varget behind the 123 scenar and it agg's in the .2's at 100 and shoots lights out all the way to 600yd (as far as I run it).

This is safe in my pierce action, so be careful and work your way up from about 37.0.

I wouldn't guarantee it, BUT I wouldn't with any powder... It would be a worthy enough combo to certainly try since you have the powder.