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Post by Deleted on Nov 13, 2015 2:02:10 GMT -5
This project was started because Jeff came out with the 9/16" breech plug and that gave me the idea to convert a heavy Savage 300 Win. mag. take off barrel. I called Jeff to talk over my idea and buy the breech plug and priming modules, he said that he would donate everything because he was interested in the idea and didn't have the time to build and test one now.
Installing the breech plug was nothing more than fitting the plug and leaving the rest of the Win. mag. chamber as is, that left a powder chamber of 65 grains using IMR 4064. During testing using Full formed bullets ranging from 110-168 grains and trying 4 different powders it became evident that this was going to work. The chronograph results matched up very close to published load data for a 300 WSM. for given bullet and powder used. The amazing part is this barrel shot better as a ML than it ever did as 300 Win. Mag..
Fast forward I ordered and put together a Krieger #17 .30 cal. 10 twist barrel 55 grain powder chamber(IMR 4064), HIS 9/16" breech plug .040 bushing, Savage precision target action right bolt left port, and a H-S precision pro-series 2000 stock, Harrell's radial brake/ or Silencerco Harvester 300 cal. suppressor.
Our ML season started last Saturday and 3 deer have been killed with this gun 2 at 115 yds. And 1 at 160 yds. and I am planning to use this gun throughout rifle season which ends Jan. 1. I gave the original Savage barrel to a friend and he has taken one deer at 100 yds. with a head shot and it was only the second shot he fired with the gun after I installed the barrel and zeroed the scope on his gun.
The current hunting load I am using is 150 grain sst full formed, 68.0 RL-17, Fed 215 gold medal match primers at 3428 fps. suppressed.
100 yard initial bullet and powder testing
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Post by markb317 on Nov 13, 2015 3:44:00 GMT -5
Sounds like you have taken the sub calibers to a new area for bore sizes. That's the kind of things I like to hear about, someone pushing the SML's guns to places no one has yet. calibers I thought about doing the same with a 28" bull barrel I have that is a 6.5 X 284 that I shot out. The barrel was a great shooter as a rifle ,I think it would make a killer SML for ground hog and playing.
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jon
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Post by jon on Nov 13, 2015 3:45:33 GMT -5
markb317. Watching with interest!
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Post by hillbill on Nov 13, 2015 7:34:03 GMT -5
Very interesting concept, I think most calibers will work as a sml it just takes some time and careful load development.
Sounds like a real shooter, how loud with the can?
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Post by Deleted on Nov 13, 2015 8:17:55 GMT -5
Hammer...way to go with your endevour....
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Post by Deleted on Nov 13, 2015 10:04:24 GMT -5
Very interesting concept, I think most calibers will work as a sml it just takes some time and careful load development. Sounds like a real shooter, how loud with the can? Bill I believe you are right about most calibers can work as long as the ramrod doesn't get so small that the bullet can't be pushed down the bore. The sound level with the suppressor is like .22 mag, however the noise is out in front of you so no hearing protection is needed. Initially I didn't plan on using the suppressor, but during testing I found that it was easier to attach the Magnetospeed to the suppressor and just unscrew the suppressor with the Magnetospeed attached when reloading. Also in NC it is legal to hunt with suppressors, and it sure is nice to be in the woods listening for any approaching deer without worrying about sticking ear plugs in before shooting.
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Post by Deleted on Nov 13, 2015 10:20:29 GMT -5
Sounds like you have taken the sub calibers to a new area for bore sizes. That's the kind of things I like to hear about, someone pushing the SML's guns to places no one has yet. calibers I thought about doing the same with a 28" bull barrel I have that is a 6.5 X 284 that I shot out. The barrel was a great shooter as a rifle ,I think it would make a killer SML for ground hog and playing. Mark, that would be a perfect barrel to experiment with. I have a 6.5-06 Ackley improved that I used to shoot 1,000 yd. bench rest with, and have been thinking about playing with it next. Man this addiction is bad, but in a good way lol.
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Post by Deleted on Nov 18, 2015 20:29:31 GMT -5
Pictures added
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Post by jims on Nov 18, 2015 22:00:57 GMT -5
I was curious the brand of brake?
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Post by rojo23 on Nov 18, 2015 22:28:01 GMT -5
Looks like a deer killing machine. My 300 WSM shoots 150s at about 3300 fps. That bullet would hit like a ton of bricks. Very interesting. Good luck testing
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Post by Deleted on Nov 18, 2015 23:09:21 GMT -5
Jims, the brake is a Harrell's precision radial.
Ron, This gun has taken 6 does so far from 75 yards to 160 yards and it does hit them pretty hard only one ran after the shot, but only 50 yards. The surprising thing is the SST actually holds up pretty well considering the velocity. I plan on using the 30 thru gun season which starts Sat. and ends Jan. 1st, Then more considerable testing will start
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Post by Deleted on Nov 19, 2015 7:52:41 GMT -5
Now if I could use that caliber it would be cool. But very cool gun in any case.
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Post by schunter on Nov 19, 2015 7:52:36 GMT -5
I am very impressed with your skills. The gun is a beauty!
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Post by Richard on Nov 19, 2015 11:46:45 GMT -5
Nice stack of fire wood Phil! Oh, the rifle "ain't" bad looking either! Kind of forgot? ?? You from out east in the state? I'm in the Hickory area. It is interesting with the subs starting to show up and yes, fortunately we in NC can legally hunt with these smaller calibers and the suppressors. That being said, I am not really seeing accuracy levels exceeding the .45's on some kind of a regular basis??? Sure they are grouping well as you and Carlos have shown but I have also seen good group from the .45's as was evident in Kentucky. Yes the lighter bullet is flatter shooting but not with some drawbacks. The heavier bullets at slower speeds hit as hard in some cases as the light ones at higher velocities? With the increase in speed, the recoil also increases so maybe a trade off? My comments are not meant to be negative, just some points to ponder? We have shown that the .45 can be very accurate out to 500 and 600 yards under the right conditions, right load, with the right person pulling the trigger. But we know that wind and shooting conditions in the field can be NOT ideal? So, whether we are shooting a 6..5, .30, .338, .40 or .45, we still have basic limitations on ethical killing distances. If we are building these subs just to say it can be done, that is great but if we are truly looking to kill deer at ethical ranges, I would think the .45 satisfies that criteria? I guess I had too much time this morning to type............... Maybe generate some needed conversation. Hope no booners get missed this season!
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Post by Deleted on Nov 19, 2015 14:56:00 GMT -5
Richard, I heat my house with a water wood stove and usually have a 2 year supply of wood on hand. That stack of wood is 5 rows deep 33 feet long and 8 feet high. I live 15 miles NE of Winston Salem, in the Walnut Cove area. I will say accuracy of the loads I have tested are not up to the level of the 45's yet, but it's way to early to tell how this thing is going to shake out in the long run. The best part is the huge selection of bullets to try. I am with you 100% on taking shots at game under field conditions, my comfort level shooting out of my box blind with the gun resting on the window sill is about 200 yards regardless of the gun I am using. Even if I was shooting off a bench I really don't have any interest in shooting at a deer past 300 yards with any gun, but that is just me. Yes this was a experiment to see if it could be done because I had that Savage 300 Win. mag. take off barrel and Jeff came out with the 9/16" breech plug. Not trying to say it's better than any other caliber, however I felt that I should make the information available to everyone because of reading Doug's and Hank's board, going to the Kentucky Challenge meeting and talking to everyone is the reason that I thought I had learned enough to even try doing it.
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Post by Richard on Nov 19, 2015 17:57:24 GMT -5
I am with you Phil. Sometimes its just fun to try. A couple of years ago there were a few guys playing with a 6 X 44 round for 600 yd. BR. The gunsmith Dave Tooley built a couple. Basically it was a .243 case shortened to 44 mm. If you don't buy a specific reamer to do it, it becomes a problem. It would seem you just run the 243 reamer in short................NOT. Because then the base becomes too tight. So I decided to make my own version (just to see if I could?) I first ran a 6mmBR reamer in to the proper depth to get the base at the proper size. Then (because I did not have a regular .243 reamer with the 30* shoulder) I used my .243 Ack. reamer with a 40* shoulder to get to the 44 mm length. So in effect, I had a 6 x 44 Ack. round. And it worked. So yeah, just fun to do stuff. It never shot any better than the straight 6mmBR and was subsequently abandoned. Want to buy 100 pc. of formed Lapua brass? Another thing I think about is who would want to buy an odd ball caliber muzzle loader unless they were "in the loop?" In your case, you had the barrel so no big deal. I like subs myself..........I built a .204 Ruger and a .17 MKIV ......devastating on ground hogs.
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Post by Hank on Nov 19, 2015 19:47:40 GMT -5
Phil.
I am glad to see it all worked out for you, I had a feeling it would do pretty good.... Something to play with and its a deer killer too.
Jeff.
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Post by Deleted on Nov 19, 2015 21:21:09 GMT -5
Richard, I do enjoy the challenge of trying something different just to see if I can make it work. As I said earlier without all of the knowledge that has been shared on these boards I wouldn't have had a clue that it might be possible.
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Post by Kyle on Nov 20, 2015 7:51:52 GMT -5
Hammer, I think that is great. Innovation is what this board is all about. Different combinations and calibers makes things more interesting. Happy to see the Hankins Ignition System worked well for you. Kyle
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