HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: PAJohn
New Today: 0
New Yesterday: 0
Overall: 12518

People Online:
Members: 1
Visitors: 52
BOT: 4
Total: 57
Who Is Where:
 Members:
01: Vince > Forums
 Visitors:
01: Forums
02: Forums
03: Forums
04: Forums
05: Forums
06: Forums
07: Forums
08: Forums
09: Forums
10: Forums
11: Forums
12: Forums
13: Forums
14: Forums
15: Forums
16: Forums
17: Forums
18: Forums
19: Forums
20: Forums
21: Forums
22: Forums
23: Forums
24: Forums
25: Forums
26: Forums
27: Photo Albums
28: Forums
29: Forums
30: Forums
31: Forums
32: Photo Albums
33: Forums
34: Forums
35: Photo Albums
36: Forums
37: Forums
38: Forums
39: Forums
40: Forums
41: Forums
42: Home
43: Forums
44: Home
45: Home
46: Forums
47: Forums
48: Forums
49: Forums
50: Forums
51: Forums
52: Forums
  BOT:
01: Your Account
02: Forums
03: Forums
04: Photo Albums

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 304
 Pictures: 2343
  · Views: 313844
  · Votes: 1302
  · Comments: 85
 

Support our Advertisers

Reduced loads for the 257 Roberts
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition

View previous topic :: View next topic  
Author Message
sniper
Super Member
Super Member


Joined: Aug 18, 2005
Posts: 735
Location: Utah

PostPosted: Wed Aug 24, 2005 9:20 am    Post subject: Reduced loads for the 257 Roberts Reply with quote

My 257 Roberts is reasonably accurate, but the barrel must be very rough, because it picks up metal fouling like you wouldn't believe. I was ratting through my stuff, and found an LBT fire lapping kit I bought years ago, to use on my rimfire and revolver. It seemed to work pretty well.

LBT sent only one compound for polishing, which was a tad dry, but a squirt or two of KROIL made it good to go again, so I figure why not? Or, I have some JB bore cleaner I could use, if that would be better. What you do, is anoint the bullet with the compound, then roll it between two metal bars to imbed the compound in the jacket metal, then load and shoot.

I am on the edge of what I think I know here, so please, anybody jump in and straighten me out, if I am too far wrong.

I figure, like in the Tubbs Final Finisher kit, a long, jacketed bullet at lower velocity should do just fine.

I would like to use the powder I have on hand, so does anyone have a reduced velocity load for the 257, with jacketed 100 or 117 gr bullets using Unique or Universal Clays? Or would the lowest velocity load in the manuals be O.K., using IMR or H4831, or H4350?


Last edited by sniper on Wed Aug 24, 2005 7:13 pm; edited 1 time in total
Back to top
View user's profile
DallanC
Site Admin
Site Admin


Joined: Jan 18, 2005
Posts: 3162
Location: Utah

PostPosted: Wed Aug 24, 2005 10:21 am    Post subject: Re: Reduced loads for the 257 Roberts Reply with quote

Personally while I've had good luck lapping barrels, I prefer to do it by hand... the thought of a gritty bullet screaming down the barrel at 2500fps gives me the willys LOL

PS: I bought my lapping compound at a local auto parts store. They sell various grits for lapping valves.


-DallanC
Back to top
View user's profile Photo Gallery
sniper
Super Member
Super Member


Joined: Aug 18, 2005
Posts: 735
Location: Utah

PostPosted: Wed Aug 24, 2005 7:11 pm    Post subject: Re: Reduced loads for the 257 Roberts Reply with quote

DallanC wrote:
... the thought of a gritty bullet screaming down the barrel at 2500fps gives me the willys LOL -DallanC

Yeah, that is giving me second thoughts, too, or it would have been done.

There is an engineering company that sells a kit, and David Tubbs, one of our premier long range competitors, recommends his "Final Finish" kit highly, and the test relults seem positive. (naturally)

It has 75 bullets, 10 each impregnated with 5 graduated finer grits, + 25 for a "tune up"somewhere down the road. I figured that instead of spending $50 for the grit impregnated bullets and a special powder that I would never use again, if the LBT firelapping set worked o. k. for my revolver and 22 rifle, it might work for a big bore.

I guess there are two possibilities: Either it'll work or it won't.... Confused

DEFINITELY gotta think about that some more, though.
Back to top
View user's profile
sniper
Super Member
Super Member


Joined: Aug 18, 2005
Posts: 735
Location: Utah

PostPosted: Tue Sep 27, 2005 2:14 pm    Post subject: Re: Reduced loads for the 257 Roberts Reply with quote

O.K., I think I got this figured out, at least the part about the jacketed, grit loaded bullet at 2500 fps.

I just got a good price on some 25 Cal cast bullets on da 'Bay. I have some LBT bore lapping compound left in my firelapping kit, which didn't seem to hurt my 22 or 357, sooooo... I am going to try 10 rounds, then do 10 more with JB Compound, which is finer. That should be plenty.

I found a load in my RCBS cast bullet Handbook that uses Unique for around 11-1200 fps., so that takes care of the screamers, although I did find a load in my reloading manuals that went "only" 2300 fps. Shocked

Wish me luck ! Cool
Back to top
View user's profile
popgun
Member
Member


Joined: Jan 26, 2005
Posts: 735
Location: Mitchell, GA, U.S.A. (2007 pop. 191)

PostPosted: Wed Sep 28, 2005 12:15 am    Post subject: Re: Reduced loads for the 257 Roberts Reply with quote

I wish you luck. I do agree with Dallan that you will get the results you want by lapping by hand and you will probably do a better job. You didn't give us an idea of the age of the rifle or how many rounds down its barrel. If it's a new rifle it takes time for a factory barrel to shoot in before it smooths out. Usually 100 rounds or so. Hand lapping will smooth it cheaper.
If you do shoot the 'grits' be careful not to over do it. Shoot a few, clean and try a few regular loads to check accuracy and see if you still get the copper foulding before shooting more lapping rounds.
I have my fingers crossed for good results!
Back to top
View user's profile ICQ Number AIM Address MSN Messenger Yahoo Messenger Photo Gallery
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition
Page 1 of 1
All times are GMT - 7 Hours



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Advertisements
 


Valid CSS! Valid HTML 4.01!
Click to check if this page is realy HTML 4.01 compliant for speed :)

All logos and trademarks in this site are property of HuntingNut.com.
The comments are property of their posters, all the rest © 2011 by HuntingNut.com
Interactive software released under GNU GPL, Code Credits, Privacy Policy

.: Upgraded to DragonFly 9.2 by Dizfunkshunal :.