Putting some loads together for a friend's rifle. Thought of trying 4198, #7, and 4759 under 40's. Anyone done same and how'd they shoot? Looking for load close to or at a full case if you've another powder load.
Posts: 1529 | Location: Central Wisconsin | Registered: 01 March 2001
I load for a 218 bee and use IMR4227. I think that the load that I found preference to was with a 35 grain v-max and 12.5 grains of 4227. I did not chrono that load, and you should confirm the charge and work up. My Lyman's Manual lists the loads for 218 bee which is where I started.
I am loading for the 17 Jet now as well and am planning on using n133 and 4198. Don't have any results yet.
I've done some initial loading with a 218 mashburn. For the 40's, RL7 will be way to slow, reserve it for the 50's on up, Its worked well with 53's, 55's and 60's. For the 40's I'm not sure what the ideal powder is H110 and AA 1680 didn't work well, and 2400 appears too fast, but I haven't tested it to confirm that. I think the new Lil gun powder may be just the ticket for the 40's. Perhaps with the larger jet case, you can get away with slightly slower powders.
I will be trying 4227, and think, rather hope it'll do the trick.
Posts: 7213 | Location: Alaska | Registered: 27 February 2001
Jim: I'm thinking your 35 gr load was low on the pressure curve, as Nosler shows 13 grs for a 45 gr. Is that correct? Plan on going down with the chamber pressure for my loads- this gun an H&R singleshot and with the taper of the Jet case is said to distort burning rates some.
Paul: And that's my reason for the #7. Performs well in low pressure applications with cast and I thought it might deliver top accuracy albeit somewhat slow for the application.
I did find capacity comparison recently- with the Jet at 14% more than the 218 Bee. Nice full case of 7 might well do. Dies here next week, so am hoping this current version of spring holds.
Posts: 1529 | Location: Central Wisconsin | Registered: 01 March 2001
i went up to 13 grains but didn't do well with the accuracy. 12.5 seemed to be the ticket for this gun with the 35 grain v-max. This load development was done for a friend and was for an H&R or New England single shot. I was impressed with how it shot. I did not get a chance to chrono the loads so can't report velocities.
After around 80 bullets thru this number, I have to put it in the wayward child class. Scopes have been switched- it just appears this one has compound problems due to bedding, a long & wide throat and a trigger pull that'll definitely strengthen your grip. Only now have I got any interest in this one, for a challenge looms here. Bore appears not to foul at all, but need to give this a close look- might run a soft lead slug thru for a feel of the internal dimensions and see if this barrel is worth tinkering.
It's been suggested to bed the stock fit to the receiver, take care to close this thing with uniformity, and look at bedding the forearm- which now is free from any pressure save the pin mounting. Crown looks fine.
Alliant 7 appears to be the best powder- if that can be said now. Case capacity is equal the 218 comparing the loading densities from the Nosler book. And that puzzles me- my reference stated the Jet had around 14% more capacity. Unique, 4198, and a Norma powder really not applicable are much more wild than 7. If the time is available-- I think I have something to learn here.
Posts: 1529 | Location: Central Wisconsin | Registered: 01 March 2001
Well the owner of this Jet fired five of eight into a neat inch the other day- the foggy scope needing replacing. Did appear to get the bugs out of this one, the barrel hanger on the forearm was shimed from the bottom and applying too much pressure to the barrel pin which it mounts on. Alliant 7 is making around 2700, burning very clean and fills the case with 16.2 grs- matching factory expansion. The 45 gr Hornets of 224 dia. are fitting well in this 2238 ish bore. Appreciate everyones input.
Posts: 1529 | Location: Central Wisconsin | Registered: 01 March 2001
I did a 3d model of the two cases based on dimensions form Ken Howell's Custom Cartridges and came up with the essentially the same volume for the two cases. I haven't done any inside measurements yet but I don't think the jet could have 14% more capacity.
I have had very good luck with H4198 and H4227 in the Bee. 4198 seems to be just slow of optimum. Good luck, TBP
[This message has been edited by BeeNut (edited 11-17-2001).]
