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Breech seating 101 (Read 172 times)

jhm Frequent Elocutionist Offline Posts: 2116 Location: georgia Joined: Sep 4^th, 2011	Breech seating 101 Sep 11^th, 2026 at 11:44pm	Print Post
	I have never breech seated but have read much about it. I would really like to breech seat load my 32-40 Hepburn. It is of course a 30 cal but can the same principles be used for a 30 cal and what dictates how far to seat the bullet? JMH


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RSW Frequent Elocutionist Offline Posts: 1317 Location: Arizona Joined: Sep 8^th, 2006	Re: Breech seating 101 Reply #1 - Sep 12^th, 2026 at 12:42am	Print Post
	Use a bullet about .001" over groove diameter. Seat it ahead of the chamber just far enough so it completely seals the bore (that's usually about 1/16" ahead of the chamber but that's not a hard-n-fast distance in front of the chamber mouth). By shooting your rifle you, can seat the bullets a little farther forward or back depending on what yields the best accuracy.

	Randy W ASSRA 10211 - ISSA 125 There are indeed two Americas. Simply put, it is not the haves and have nots. The two Americans are in reality divided into those who do and those who don't.
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jhm Frequent Elocutionist Offline Posts: 2116 Location: georgia Joined: Sep 4^th, 2011	Re: Breech seating 101 Reply #2 - Sep 12^th, 2026 at 9:35pm	Print Post
	Do you have a picture of a Hepburn seating tool or know where one can be purchased? JMH


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RSW Frequent Elocutionist Offline Posts: 1317 Location: Arizona Joined: Sep 8^th, 2006	Re: Breech seating 101 Reply #3 - Today at 12:34am	Print Post
	jhm Unfortunately I've never seen a breech seater for a Hepburn. The only sources for breech seaters I'm aware of are Riverview Rifle works Bill Bargloff. I don't know if either of them would make one for a Hepburn.

	Randy W ASSRA 10211 - ISSA 125 There are indeed two Americas. Simply put, it is not the haves and have nots. The two Americans are in reality divided into those who do and those who don't.
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 12530 Location: Why, out West of course Joined: May 29^th, 2006	Re: Breech seating 101 Reply #4 - Today at 2:37am	Print Post
	My Hepburn 38-55 has been shot many times breech seated but I never had a Hepburn breech seater. I didn't know they existed. My own breech seater will work in a Hepburn but I never needed extreme force to seat an oversize or hard bullet. One time something happened where I didn't have a breech seater so I used a piece of wood dowel with a mark on it to seat bullets. Not the most convenient but it worked fine. Not rocket science.
	« Last Edit: Today* at 2:43am by westerner* »
	A blind squirrel runs into a tree every once in a while.
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jhm Frequent Elocutionist Offline Posts: 2116 Location: georgia Joined: Sep 4^th, 2011	Re: Breech seating 101 Reply #5 - Today at 6:01am	Print Post
	I am sure I can fab something up I was just looking for a picture of one. I have seen the pusher type before but was thinking maybe I needed a mechanical one. Thanks for the pictures. JMH


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Oakdale Full Member Offline Posts: 126 Location: Maplewood, MN Joined: Jun 7^th, 2017	Re: Breech seating 101 Reply #6 - Today at 9:23am	Print Post
	For the 2025 match season I used a plugged case, a nylon rod and plastic headed hammer to seat the tapered bullet. An annoying sequence, especially when the match clock is running. In the fall I ordered a breach seater from Riverview Rifles. I used that this entire match season. Robb produced a well made, useful and impressive looking tool. It worked great! Now for me to learn how to shoot this CPA .38-55….better! Tom


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