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+---- Thread: sharps 74 40 70 load (/thread-2193.html)
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sharps 74 40 70 load - ken s - 04-21-2017
I have an original 74 Sharps sport.rifle 40 70 SS
load is 330 Brooks PP
64 1/2 Old E. comp. 1/8
060 walters
CCI LR Reg primers
MAG causes the cases to stick because the primer backs out slightly.so I prefer the reg primers that do not
I've ordered a Brooks mold
330 RN 3 grease grooves .403 original bore and the bullet will be .409 that Steve recommended to bump up and fill the grooves. I want to fire it unsized.
I want to try the Grease groove bullet that became so popular in the mid 1880s.
Any thoughts on the mold? I can still change things.
Any thoughts on the load and compression amount?
Thanks..Ken
RE: sharps 74 40 70 load - Don McDowell - 04-21-2017
Trust Steve on the mould recommendation.
I would suggest maybe going to 69-70 gr. of powder, and an rp 9 1/2 primer., But your rifle and the target will tell you what changes in the recipe you might want to try.
RE: sharps 74 40 70 load - bruce moulds - 04-22-2017
will you be able to chamber a round loaded with a 409 bullet?
if the chamber has not been buggered up it might be a little tight.
keep safe,
bruce.
RE: sharps 74 40 70 load - ken s - 04-22-2017
(04-22-2017, 01:13 AM)bruce moulds Wrote: will you be able to chamber a round loaded with a 409 bullet?
if the chamber has not been buggered up it might be a little tight.
keep safe,
bruce.
My thoughts exactly. 409 in an original bore might be tight. I had to have the chamber relined. (bore untouched) It is the original 40 70 SS and letters to that. The shells are 40 70 for the original barrel and fit no problem. I'm thinking if the .409 is a little tight, I can always size
down a bit with a .408 lube die. Steve said tight is better than loose and I think he's right.
I paper patch to .403 with his PP 330 mold and it works. I tried a .409 expander and it fits in the shell as is...tight but it fits. so it should chamber.
RE: sharps 74 40 70 load - ken s - 04-22-2017
(04-21-2017, 11:47 AM)Don McDowell Wrote: Trust Steve on the mould recommendation.
I would suggest maybe going to 69-70 gr. of powder, and an rp 9 1/2 primer., But your rifle and the target will tell you what changes in the recipe you might want to try.
I got good results with 64 1/2 2F, but the shells are for the original and will not fit that much powder. The original Sharps load was 65.
I'll try more just to see.....thanks...Ken
RE: sharps 74 40 70 load - bruce moulds - 04-22-2017
let us know how the loaded rounds chamber.
409 should not cause problems with the bullet in the barrel.
if the chamber neck will take a round with a 409 bullet, the new chamber will be bigger in the neck than the original.
originals would slip fit a pp bullet in a fired case with slight friction.
a groove diameter bullet would not enter a fired case.
this could be another original rifle to suffer the slings and arrows of modern gunsmithing - hopefully not.
keep safe,
bruce.
RE: sharps 74 40 70 load - ken s - 04-22-2017
(04-22-2017, 07:46 AM)bruce moulds Wrote: let us know how the loaded rounds chamber.
409 should not cause problems with the bullet in the barrel.
if the chamber neck will take a round with a 409 bullet, the new chamber will be bigger in the neck than the original.
originals would slip fit a pp bullet in a fired case with slight friction.
a groove diameter bullet would not enter a fired case.
this could be another original rifle to suffer the slings and arrows of modern gunsmithing - hopefully not.
keep safe,
bruce.
no,it's fine Bruce. The 40 70 shells chamber fine, the PP bullet slip fits in the slightly expanded shell, and then I 'tweak' with the factory crimp die. so no chamber problem for sure.
but. wanting to try a FN 330 with 3 groves,it's just the overall size that I'm thinking about. I could very easily tell him to make it .408 or even .407, But Steve thinks .409 for GROOVE diameter will work.
Let me know what you think...Ken
RE: sharps 74 40 70 load - ken s - 05-20-2017
the final on the original 74
the Brooks mold 410 330 RN was great.
perfect bullets at .410
I sized with an RCBS .410 lube die...just a 'touch' of sizing and lubing.
The .410 expander lets them hand seat perfectly.
They all chamber.
I don't' size at all....just use the fac. crimp die slightly
now to sight them in..... Ken
RE: sharps 74 40 70 load - ken s - 05-26-2017
(05-20-2017, 11:09 AM)ken s Wrote: the final on the original 74
the Brooks mold 410 330 RN was great.
perfect bullets at .410
I sized with an RCBS .410 lube die...just a 'touch' of sizing and lubing.
The .410 expander lets them hand seat perfectly.
They all chamber.
I don't' size at all....just use the fac. crimp die slightly
now to sight them in..... Ken
ok getting better. hitting paper at 100 3 inch groups.
going to try different compressions with 60 grain 2f load.
ez extraction when I clean the chamber really dry with a brush. Ken
RE: sharps 74 40 70 load - Don McDowell - 05-26-2017
What are you doing for fouling control between shots?