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RCBS Bullet Mold Recommendation (Read 7334 times)

Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	RCBS Bullet Mold Recommendation Jun 8^th, 2016 at 4:00pm	Print Post
	Has anyone used the RCBS #378-312 mold for a 38/55? I'm contemplating a rebarrel of a 45/70 with a 28" 38/55 with .375 bore and a 1:12 twist. This appears to be a reasonably priced mold and was wondering about others' experiences with it. Thanks. Ed


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John Boy Ex Member	Re: RCBS Bullet Mold Recommendation Reply #1 - Jun 8^th, 2016 at 4:37pm	Print Post
	Ed, with a 1:12 bore on the 38-55,you would be best to determine the length of the RCBS bullet and then do a twist ratio calculation ... (You need to *Login* or *Register* to view media files and links) (You need to *Login* or *Register* to view media files and links)
	« Last Edit: Jun 8^th, 2016 at 4:50pm by »

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Bad_Ass_Wallace Full Member Offline Posts: 150 Location: Kingaroy, Australia Joined: Jul 29^th, 2005	Re: RCBS Bullet Mold Recommendation Reply #2 - Jun 8^th, 2016 at 4:57pm	Print Post
	My 38/55 has a 1:12" twist and I use a custom Paul Jones 375gn bullet They are big, bold and shoot beautifully! (You need to *Login* or *Register* to view media files and links)

	Hold still varmint; while I plugs yer!
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Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	Re: RCBS Bullet Mold Recommendation Reply #3 - Jun 8^th, 2016 at 6:44pm	Print Post
	Now I see why they call you Bad Ass, Mr. Wallace. This rifle will primarily be shot at 200 yards.


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: RCBS Bullet Mold Recommendation Reply #4 - Jun 8^th, 2016 at 7:41pm	Print Post
	Breech seated or fixed for the 200 yd. work. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	Re: RCBS Bullet Mold Recommendation Reply #5 - Jun 8^th, 2016 at 7:45pm	Print Post
	Fixed. At some point in the future the range will be extended, but primarily it will be used as an offhand 200 yard BPCR.


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: RCBS Bullet Mold Recommendation Reply #6 - Jun 8^th, 2016 at 7:48pm	Print Post
	Thank you Sir fixed is beyond my realm of expertice so unfortunatly I can't be of any help to you. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	Re: RCBS Bullet Mold Recommendation Reply #7 - Jun 8^th, 2016 at 7:57pm	Print Post
	Thanks anyway. I appreciate your inquiry.


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Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	Re: RCBS Bullet Mold Recommendation Reply #8 - Jun 8^th, 2016 at 8:31pm	Print Post
	Thanks Schuetzendave. I'm not sure I need that much for what I intend to do with it, but a big bullet would cover all bases. would you have a notion as to performance of the 310 grain bullet in that fast a twist barrel?


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march41 Junior Member Offline Posts: 89 Location: Reading,PA19606 Joined: Jan 19^th, 2013	Re: RCBS Bullet Mold Recommendation Reply #9 - Jun 8^th, 2016 at 8:32pm	Print Post
	Just tried the lyman 335gr in my Shiloh at 200yds,groups were excellent.Bob.


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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: RCBS Bullet Mold Recommendation Reply #10 - Jun 8^th, 2016 at 8:33pm	Print Post
	Unfortunately, RCBS molds don't seem to be what they once were. Out-of-round, etc. Believe their production may have moved off-shore. With a 12" twist you can use about any bullet you want. The 312gr RCBS bullet should shoot just fine if you can get a good mold. But, 0.378" can be a bit large for a 0.375" bore. Most folks generally prefer 0.001-2" over. You might look at the BACo 0.376" molds. Definitely more $$, but they are high quality. Their 330gr Money bullet would seem to be a natural in your 12" twist and light enough that your 38-55 will have no trouble sending it along at longer distances once you get to that point. Some quality mold suppliers to check out are NOE, Pioneer & Brooks. There are others.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	Re: RCBS Bullet Mold Recommendation Reply #11 - Jun 8^th, 2016 at 8:35pm	Print Post
	M41, does your Shiloh have a 1:12 twist? Thanks.


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Edward C. Sharps Participating Member Offline Posts: 24 Joined: Apr 13^th, 2016	Re: RCBS Bullet Mold Recommendation Reply #12 - Jun 8^th, 2016 at 8:36pm	Print Post
	Thank you for the reply Glenn. Ed


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: RCBS Bullet Mold Recommendation Reply #13 - Jun 8^th, 2016 at 8:59pm	Print Post
	I think you would be best served to call and talk to Steve Brooks, BPCR is where he achieved his multiple championship status for several years running and making moulds is his business. When asking questions such as yours you will get several varying opinions some maybe spot on and some simply will not but they are all given with the intent of trying to be helpful. If you are looking to get your rifle shooting to the best of its ability I would highly recommend that you get an opinon from Steve Brooks who can also make you a mould to fit your exacting needs and his quality is second to non. That old saying of do what the consistant winners do holds very true if you were to seek advise from Steve and that would be my approach if I wanted to achieve the same extremely high shooting status that he has achieved in BPCR competition over the years that he has competeted. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: RCBS Bullet Mold Recommendation Reply #14 - Jun 9^th, 2016 at 11:47am	Print Post
	Dave - does your formula take into account barrel length? Am guessing it is likely immaterial based on MV. Could you tell me the Sg for a 13" twist with the 360gr Money bullet? Thanks.
	« Last Edit: Jun 9^th, 2016 at 3:18pm by SSShooter »
	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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