Large rifle primer/ 209 adapter and full form bullet resizer

[hemicuda]

(figure 1)Full formed resized with adjustable sizer


(figure 2) Steel primer adapter for 209 to LRM

(figure 3) Primer removal tool

These are tools I made to shoot full-form .45 hornady FTX bullets.  I could not get land riders to shoot, now I can get 1.5" group.  That is with 1-30 twist.  I use an arbor press to size them.  Too much pressure for a regular loading press.  The primer adaptors were made just to see if there was a benefit to rifle primers.  Seem to be much cleaner than 209's but not much else.  Point of impact changes.  I think I  will stay with LRM just because it's cleaner.  Accuracy seems about the same, plus I can change back anytime.  I was looking for a tougher bullet as I hate to blow a fist size hole in deer.  Hopefully the FTX's will do that - their base is around .065 and tapers up to .015 at tip.  The barnes 250 TSX open up perfect and stay together but accuracy wasn't great (3")  Harvester 225 Black belts are too soft but shoot super with 52 gr. 4198 load.  I shoot  60 gr. IMR 4198 with the Hornady and Barnes and that is enough recoil plus after it goes thru the deer what more do you need.  I feel I need a faster twist to get better groups- any suggestions?  Now I"m getting ready  to build a .442/.452 with 1-16 twist for a nephew.

[bestill]

What type gun and specs this about

[hemicuda]

H and R action 28" GM barrel .450/.458 and 1-30 twist. It was a .410 that went thru a fire and action was okay. So for a challenge I built the stock and forearm, even made an aluminum trigger guard and steel pivot that fastens on forearm as they were both plastic. I just put on a decelerator butt pad this year but built the gun 3 years ago. It has accounted for 5 deer, 1 coyote and at least 7 groundhogs.

[bestill]

Imo 1/20 twist would cut your group in half without full forming bullets. Make alot easier load on lands and shoot. You doing pretty good to get a 1/30 twist to shoot 1.5 group

[hemicuda]

I just looked at SMI website and they offer 1-36 twist-I was surprised as most have left that long ago. I do feel the 1-30 is too slow for what I am doing. But with that said it's not terrible.

[rambler]

SMI is adamantly against sabotless

[edge]

If you have a H&R action why not get a H&R 45-70 barrel, it will be a cheap build and the accuracy should be OK.

Now if you want a better barrel for long range then pay the bucks, but for under 200 yards I'D go H&R.

You seem to me mechanically inclined and have the tools to do the work yourself so you might want to go the route I did and make the H&R both for muzzle loader and cartridge...if legal!


dougva.proboards.com/thread/4648/new-project-iii

edge.

[dannoboone]

Jul 8, 2014 9:58:08 GMT -5 edge said:

dougva.proboards.com/thread/4648/new-project-iii

edge.

Well, that's like reading a good book with the last
two chapters ripped off the book!

How did it end???

[cowhunter]

Hemicuda. Welcome. You have some sweet machining talent, like Edge and many others here. When you compared your 209 system to your LRPrimer system were the fllame channel volumne/distance equal! Were the fps the same for identical powder loads? We have been trying to determine which system (rifle or shotgun primer) has better ignition or if the differing ignitions are all related to the flame channel configuration. What do you think?

[edge]

Jul 8, 2014 16:54:11 GMT -5 dannoboone said:

Well, that's like reading a good book with the last
two chapters ripped off the book!

How did it end???

It works very well, it is very light and makes for a great walking rifle.
Once you put in the BP and the module pushes it tight you can get it out without a mallet.
Zero blowby around the BP but the 45-70 cases were not very consistent in web thickness so I had to machine inside to uniform them.
Once they were machined they worked like a charm.
Since it is a relatively short range rifle I only use it when I don't hunt in fields.
Snowy mornings are perfect for it but when I hunt field edges I use my heavy gun.

edge.

PS I would not use this for non-smokeless since if you had a hang fire and opened the breech the BP might be just as likely to shoot you in the head as the bullet to exit the bore

[hemicuda]

Cowhunter: I didn't check velocity but did not expect much difference. The hard crud from the 209's wasn't there. With the LRMprimers you could lightly scrape it out with just a wire, etc. I used everything the same, flame channel.093 about an inch long, .036 hole about .312 long. I was just curious and didn't want to change from 209's if it would not work, but plan to use it now. I'll keep posting.
Edge: In Ohio we can shoot straight wall rifle cartridges this year. I thought about making mine a 45/70 as well but remembered it is only SB-1 action(shotgun) Probably would still work with light loads but will stay away from that until I get something stronger. I had never seen your 45/70 thread before, looks like we all think alike. lol

I need to meet you guys in person sometime. Probably won't make it to shoot in KY. in August but we'll see.

[hemicuda]

Well we shot the new rifle (optima conversion .442/.452 1-16 twist GM barrel) Using full form 250 FTX with 60 gr. 4198 IMR, groups around 1.5 at 100. 2480 fps with 209 primers and close to 50 fps less with LRM- 2430-2420fps. Need to do more testing but these are first results. Need more free days!

[Deleted]

LRM is 50 fps less than 209 primer...

How about the accuracy?
Have you seen any differences between the LRM and 209?

[longrange]

I would think that would depend on which primer you use. In my centerfire rifle, CCI 250 lrm is 40 fps slower than Winchester large rifle magnum primers.

[hemicuda]

I was using Winchester standard rifle primers. Magnum may make up the difference.