338 Norma Reloading Data

SheepShapeAK

Active Member
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Joined
Apr 17, 2020
Messages
27
Location
Alaska
Depends on how you load it. I’ve got Norma brass that I anneal every time and it as 16 reloads on it and still holding primers medium-tight. I imagine Peterson brass will do the same or longer.
Sweet. So 500 cases will last me at least three barrels. Haha.
 

quaka wacka

Member
Joined
Sep 10, 2011
Messages
14
Anybody shooting the 240 super bulldozers? What powders are guys using? I don’t have the bullet listed in quickload.

Went and shot the 285 ELDm with N570 yesterday. Just a pressure test, but 94, 94.5 and 95 had 3/4” of vertical at 300 and were within 4fps. Didn’t hit pressure in Peterson brass up to 97gr. I’m trying something different after reading this:

I normally do a pressure test at +.5gr but never really tried to gather data besides velocity and determine if a load is safe. I’m going to load 94.5 and do seating depth next. I anticipate doing powder fine tuning afterwards.
 

SheepShapeAK

Active Member
LRH Team Member
Joined
Apr 17, 2020
Messages
27
Location
Alaska
Anybody shooting the 240 super bulldozers? What powders are guys using? I don’t have the bullet listed in quickload.

Went and shot the 285 ELDm with N570 yesterday. Just a pressure test, but 94, 94.5 and 95 had 3/4” of vertical at 300 and were within 4fps. Didn’t hit pressure in Peterson brass up to 97gr. I’m trying something different after reading this:

I normally do a pressure test at +.5gr but never really tried to gather data besides velocity and determine if a load is safe. I’m going to load 94.5 and do seating depth next. I anticipate doing powder fine tuning afterwards.
I can’t technology. see next post.
 

SheepShapeAK

Active Member
LRH Team Member
Joined
Apr 17, 2020
Messages
27
Location
Alaska
Anybody shooting the 240 super bulldozers? What powders are guys using? I don’t have the bullet listed in quickload.

Went and shot the 285 ELDm with N570 yesterday. Just a
Got my final load for the 270 Bulldozers!!

270 Badland Bulldozer, HBN coated
88.5 grains VV N-570
.025" off (3.819" OAL)
Peterson brass
GM215M
2835 fps

Three different 3 shot groups @200 yards, pictured below. I adjusted the last one but guessed and went a little far. This gun is a shooter, and these bullets make it easy, I haven't done ANY seating depth testing, and don't think I will.

View attachment 180397

89.0 grains Retumbo at about 2825 fps didn't do too bad either, and the horizontal stringing may have been me, but still right around half MOA, maybe a touch over. If I can't find any N-570, this or a load close to this will be my back up.

View attachment 180398

test, but 94, 94.5 and 95 had 3/4” of vertical at 300 and were within 4fps. Didn’t hit pressure in Peterson brass up to 97gr. I’m trying something different after reading this:

I normally do a pressure test at +.5gr but never really tried to gather data besides velocity and determine if a load is safe. I’m going to load 94.5 and do seating depth next. I anticipate doing powder fine tuning afterwards.
If you go back a little in the thread, I believe one member was running the 270’s with vv-250
 

sp6x6

Well-Known Member
Joined
Dec 8, 2009
Messages
4,056
Location
NW MT
It was near end season and I had few left over older 10+ sized brass and some 240 super dozers.So I dropped a few in to shoot a varmit or rock, or timber closer shot. Well I came off a timber ridge and run into a 6x6 and tested it on him,200 yrds all,would seen him crash except one big fir tree in path,15 yrds from where I shot him out opposite shoulder.Was broken up good but not as blood shot as i would of thought.Spring comes hoping supplies hit shelfs,want to work with it some more,1-10 T on mine
 

codyadams

Well-Known Member
Joined
Jan 7, 2015
Messages
3,309
Location
Southwest Wyoming
Anybody shooting the 240 super bulldozers? What powders are guys using? I don’t have the bullet listed in quickload.
I'm going to switch from the 270 Super Bulldozer and N-570 to the 250 Super Bulldozer II and I have N-565, N-570, Retumbo, IMR7828, a little RL26, and a little H1000 to choose from. Im6thinking N-565......The 250 SBDII has a better bc than the 270 SBD does, will obviously be going faster, which only helps stability and more speed is never a bad thing for a mono.

Knowing these bullets, I will probably just use my load data from the 265 ABLR's and the 250 SBDII, as my data for the 270 SBD closely matched data for the 300 Bergers as far as max charges. Just unsure where to start with the N565, has anyone used it for 250-265 grain bullets? If not I'll update when I get them.
 

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