Main Menu
Newest Members
HandyMan91, saskfarmer, mcleveland, SSgtG1987, Bcap
60060 Registered Users
Top Posters
dogcatcher 76406
stxranchman 51860
RWH24 44568
rifleman 43708
BOBO the Clown 40901
BMD 40536
Big Orn 37484
txshntr 33535
bill oxner 31873
sig226fan ( 30466
Forum Stats
60060 Members
45 Forums
471302 Topics
6183217 Posts

Max Online: 16728 @ 03/25/12 08:51 AM
Topic Options
#5529336 - 01/08/15 10:55 PM 220gr Sierra HPBT in .30-06
possom813 Online   happy
Veteran Tracker

Registered: 09/07/09
Posts: 2106
Loc: Cayuga
I need some data with IMR4064 and this bullet.

I've found 220gr data, but it's all for round nose bullets.

I plan to start at 40grs and work up to a good load, but can't find an accurate overall length. I've found variances from 3.1-3.450

I seated the first 3 at 3.25, but I can fix that easy, figure I should stop there until I get a definitive answer. I checked all the manuals I have and online and can't find information on this bullet for the .30-06.
I will fear no evil, for thou art with me.

#5529407 - 01/09/15 01:10 AM Re: 220gr Sierra HPBT in .30-06 [Re: possom813]
kmon1 Online   content

Registered: 09/27/06
Posts: 20094
Loc: Texas
3.45 sounds like the max or close to it for SAAMI specs. That is also about where to look for functioning through the mag for the 30-06, which for lots of bullets I let functioning mag length dictate OAL the 220gr HPBT is not that depth sensitive of a bullet as far as distance to lands as say a Berger VLD design.

There is lots of data for the 220gr round nose that and those bullets have been loaded for years in the 30-06 and work well for shorter ranges on game. One thing with their bullet profile they are shorter than the Sierra 220gr HPBT bullets at 1.489 TTor something like that.

If both bullets are seated to the same OAL the longer bullet will takeup 2 to 3 grains of case capacity than the RN bullets. That is being figured with 3.45 inch OAL. So adjust your powder charge accordingly. Starting at 40gr of IMR4064 it sounds like you have thought about that. Work up carefully from there.

Just curious why 4064 when there are slower burning powders that will easily yield more velocity unless you have a bunch of 4064 already but that leaves some performance on the table.

Good luck, start low and work up following pressure signs and let the gun tell you what it likes. Stay safe.

Remember advice is worth what you pay for it.
Guidelines / Rules of Conduct

RULES for using the TRADING POST

#5529412 - 01/09/15 02:00 AM Re: 220gr Sierra HPBT in .30-06 [Re: possom813]
possom813 Online   happy
Veteran Tracker

Registered: 09/07/09
Posts: 2106
Loc: Cayuga
I have a couple boxes of the 220's, and a pound of 4064 that was setting on the shelf, leftover from some .30-30 loads a couple of years ago. I've since moved to a 4895 load for .30-30 that shoots better than I do.

Figure I'd run the 220's out with the 4064 so it has a purpose other than being used as a paperweight. No real use for the 220's, they were a sub-sonic .308 project that a buddy of mine was messing with and I ended up with a couple of boxes when he bought them.
I will fear no evil, for thou art with me.

#5529601 - 01/09/15 08:00 AM Re: 220gr Sierra HPBT in .30-06 [Re: possom813]
ChadTRG42 Online   happy
THF Trophy Hunter

Registered: 09/16/09
Posts: 9185
Loc: Lewisville, TX
Just seat the bullet close to the lands, or wherever fits in the chamber and feeds in your magazine. If you seat it out close to the lands, it will help it shoot better and get you more case capacity for powder, if 4064 is giving you a compressed load. Use the 220 RN data, and work up to a max load, or just over max while looking for pressure signs. Data shows a 1:11" twist or faster is needed. If you have a 1:12", you will want to push it as fast as possible to help with stability.
Type 01 and Type 06 FFL


© 2004-2016 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide