cast bullet through a steel plate 2

midnightrunpaintballer

ok i was reading the posts about this and here's my question: what is an accelerator round and how does it work? what are their intended purpose? i read the post again and somewhat have an idea how it would be made but what happens to it after it leaves the barrel of the gun? does it seperate like the wad from a shotshell? sorry i'm ignorant, but i'm trying to learn.....

perry shooter

Remington came out with idea to be able to use your 30-06 ,308, 30-30 and maybe others so that you could say varmit hunt with your 30-06 with 22 cal bullets at about 4000 FPS. how ever accuracy was never as good as say a varmit rifle in 22/250 so they sort of faded away . You can buy the sabot but reloading data shows you need fast powder as bore size is still 30 caliber but bullet is light and it is hard to get good pressure for entire burn and rifleing twist was not ideal. All factory rounds were Jacketed as far as I remember . I for one never thought of lead bullets but because the lead never touches the bore there is no NEED for Jackets . I bet it would be hard to get the serial number off of that bullet after going through that steel plate [:D] for all those states trying to pass that kind of DUMB * LAW.

dtknowles

I was looking to develop this sabot load for low cost high performance plinking. It shoot very flat out to a couple hundred yards, does not kick like my hunting or target loads. The sabots are half the price of the cheapest 30 cal. jacketed bullets I could find but of course I have to add the cost and trouble of casting the 22 cal. bullets but I don't have to size or lube them or install the gas checks. The permanent three shot group in the steel plate is an Inch and three quarters (1.75") this was off an improvised rest shooting at an eight inch plate without a precise aiming point. I have shot smaller groups with these rounds off a bench so accuracy is, while not like a .22-250 varmint rig this is from a Ruger 77 MK II with a light weight barrel that shoots factory 30-06 ammo to right about an inch at 100 yards and the Mil. Surp stuff I have into three inches.

I was shooting lead at the plates to preserve the plates as making new steel plates is not trivial for me as I don't have a cutting torch. I wish they had not made the holes but it is real impressive.

I may have to switch back to .30 cal. Gas Checked Lead bullets for mid range plinking but then the trajectory is not as flat and I will have lead fowling to deal with.

dtknowles

Midnight

the plastic sabot has a central cavity for the projectile which in this case the sabot has slits to make fingers that grab the projectile. Because of the rotational forces these fingers are forced away from the projectile when the combo leaves the barrel. With the fingers spread out the aerodynamic forces drag the sabot off the projectile letting it continue on to the target.

nononsense

midnightrunpaintballer,

Nothing describes it better than a picture:



Best.

captkirk3@dslextreme.com

Just go's to show.......One Picture equals 1000 words...

midnightrunpaintballer

thanks again for all the help guys. i understand everything now. and yes the picture was worth a thousand words. i'm thinking those sabots would make great penetrating rounds in an sks but then again, if the 7.62 won't go through it, i probably dont' want to shoot it anyways. thanks again for all the info. you guys are awesome

11b6r

The ORIGINAL Remington Accelerator (accept no subsitutes) was more than just a saboted bullet. VERY fast burning powder, not commercially available. LOW energy primer- also not commecially available- or the primer alone would start the very light bullet out of the case. VERY hard bullet- because the rotational forces were so high, when the fingers of the sabot sprang away, releasing the squeeze on the bullet, the bullet tended to "blow up" in flight. (Source- Cartridges of the World) Remington CLAIMED velocities of 4500+ fps from the 30-06 version, about 4100 fps from the .308. The 30-06 and 30-30 versions seem to still be in production, the .308 is not (that I can find) Prairie dogs tend to evaporate when whacked with one. As far as armor piercing capabilities, the bullets weigh only 55 grains- lotta speed, not much mass. Accuracy was about equal to, but no better than the parent caliber. You CAN make your own saboted cartridges, but they will not be true Accelerators. They do have a rather distinct sound, tho.

flyingtorpedo

Some 30-30 and 30-06 accelerator's right here on GB! If I had a bolt action 30-06 I probably would have picked up a box a while back. They looked like they would be fun for hitting milk jugs.