Encore thanks for the info. I have started looking into some of the other rounds and see the sabot's and some others that are just straight copper i guess. I am not challenging you on your experience but I have been seeing a lot of reviews on the powerbelt shooting sub MOA at 100 yards. Now just the FPS limits for the bullet to expand or pencil through are concerning and I am leaning away from them now, but what if these need a specific FPS to perform properly, how and why is the construction of a sabot any different?
With the the rounds you are recommending, you keep saying to shoot the BH209 powder I believe? Have you shot these rounds with let say the white hot pellets? I hear they burn cleaner than most powder and burn faster also, but with the ease of loading these instead of a new'bie fumbling with a powder charge may help me I think.
Thanks again for the info.
I understand you need information and have questions. We all started at one time and believe me, even "old dogs" can learn new things. The only stupid question is the one not asked.
What you should consider as far as bullets go, is not so much that they have to be shot between speed "A&B" but at a bullet's minimum speed to function properly. Great bullets do not splatter on impact, nor do they have to be shot within a certain minimum and maximum speed to function properly. However, most will have a minimum speed for them to expand properly, and in most cases that minimum speed is very close to the minimum energy required.
Powerbelt base is just that and its the only thing that seals the propellant from the bullet. If the bullet doesn't obturate to the lands and groves, it can actually wobble when going down the barrel. The way to get the bullet to do it properly, is to soften the lead in the bullet. Same reason heavy conical shooters use soft lead bullets.
I'm not saying some shooters can't get MOA at 100yds, but witnessing it would be proof. Look at it this way as EXAMPLE only: Your barrel measures .504. Your friend's barrel measures .502. You shoot the same bullet and it loads easy in both barrels. With only the same skirt on the bullet, which rifle will most likely shoot the best?
Take the saboted bullet. Its fully encased in the sabot, which prevents it from wobbling when going down the barrel. It also has a skirt, but it also runs the entire length of the bullet. Its similar when shooters shoot heavier paper patched bullets. The bullet is encased in the paper, which keeps it from wobbling, seals the bore, then unwinds after the bullet leaves the barrel.
As far as shooting BH209 and Barnes bullets, I've shot
many thousands of them. I've shot up to 2,000 rounds a year. If my Ultimate would shoot BH209 and Barnes bullets accurately to 400yds, I'd be shooting and hunting only with BH209 and Barnes bullets. As far as white hots, I have no experience with that propellant.
Here's a couple photos for you to examine. The first, a powerbelt shot with IIRC, 110grs of 2f. The whitetail I took with it, was 100yds away in a picked corn field. The bullet passed through the whitetail, with proper shot placement, then recovered from the dirt in the field. Had I not watched the deer run and fall, I'd most like not found that deer, as there was no blood, on snow!
Here's what a Barnes looks like inside a sabot.
Here's what a recovered Barnes looks like.